Music performance device, system, program, and music performance device control method

Abstract

Provided is a music performance device (10) which allows a DJ performance by a first user using a playlist including music information, a music order, and supplementary information for use in DJ performance of each piece of music, said music performance device comprising: a reception unit (13) which receives a shared playlist transmitted by a second user who is a sharing user; a performance unit (111) which carries out a DJ performance using the music that can be used by the music performance device, on the basis of the received shared playlist; and an editing unit (112) which edits the received shared playlist. When the shared playlist has been changed by the second user, the reception unit receives information indicating the content of the shared playlist edited by the second user, and the editing unit reflects the information indicating the edited content on the received shared playlist.

Description

Musical piece performance device, system, program, and method for controlling a musical piece performance device

[0001] The present invention relates to a music performance device, a system, a program, and a method for controlling a music performance device.

[0002] Before a DJ (Disc Jockey) performs a DJ performance by operating sound equipment such as a DJ controller, a computer, etc., he or she must make advance preparations known as preparatory work. This preparatory work includes tasks such as creating a playlist, selecting songs, analyzing song data (detecting BPM and keys, detecting and adjusting beat positions, setting cue points, etc.), and checking compatibility between multiple songs. Regarding playlists, for example, Patent Literature 1 discloses technology that enables multiple users to share playlists. However, Patent Literature 1 only shares a playlist as a group of songs with a specified order, and does not share various information necessary for a DJ performance.

[0003] WO 2005 / 106752

[0004] DJ performances are often held at music events and other occasions, and there is a desire to share information about the DJ performance along with the playlist among not only the DJ himself, but also musicians and sound and lighting technicians, etc. In such cases, information is shared using shared files stored on a server, but this is time-consuming and a more user-friendly method is needed.

[0005] The present invention aims to solve at least part of the above problems, and one of its objectives is to provide a music performance device, system, program, and control method for a music performance device that allows multiple users to share various information necessary for DJ performances along with playlists.

[0006] [1] A music performance device in which a first user performs a DJ performance using a playlist including information about songs, the order of the songs, and additional information used in the DJ performance of each song, the music performance device comprising: a receiving unit that receives a shared playlist sent by a second user who is a sharing source user; a performance unit that performs a DJ performance using songs available on the music performance device based on the received shared playlist; and an editing unit that edits the received shared playlist, wherein when the second user changes the shared playlist, the receiving unit receives information indicating the edits made to the shared playlist by the second user, and the editing unit reflects the information indicating the edits in the received shared playlist. [2] The music performance device according to [1] further comprises a transmitting unit that, when the first user changes the shared playlist in the editing unit, transmits the edits to the second user. [3] The music performance device according to [1] or [2], wherein the editing unit edits at least one of the following items: adding or deleting songs, the order of songs, the BPM of songs, and the positions of cue points of songs. [4] The music performance device according to any one of [1] to [3], wherein the available songs are songs stored in the music performance device or songs that the music performance device can acquire from an external source. [5] A system including a first music performance device that is the music performance device according to any one of [1] to [4], and a second music performance device that performs a DJ performance by a second user using a playlist including song information, an order of the songs, and additional information used in the DJ performance of each song, wherein the second music performance device includes: a transmission unit that transmits a shared playlist to the first music performance device as a sharing destination; a performance unit that performs a DJ performance using songs available on the music performance device based on the shared playlist; an editing unit that edits the shared playlist; and when the second user changes the shared playlist in the editing unit, the transmission unit transmits the edited content of the shared playlist to the first music performance device. [6] The system described in [5], wherein the second music performance device further includes a receiving unit that receives information indicating the edited content of the shared playlist on the first music performance device when the shared playlist is changed on the first music performance device, and the editing unit reflects the information indicating the edited content in the shared playlist.[7] The system described in [5] or [6], wherein the second music performance device further includes a setting unit that performs at least one of determining whether editing is possible in the editing unit of the first music performance device and setting editable items. [8] A program configured to cause a computer to function as the music performance device described in any of [1] to [4]. [9] A control method for a music performance device in which a first user performs a DJ performance using a playlist including music information, the order of the music, and additional information used in the DJ performance of each music, the control method including the steps of receiving a shared playlist sent by a second user who is a sharing source user, performing a DJ performance using music available on the music performance device based on the received shared playlist, and editing the received shared playlist, wherein when the shared playlist is changed by the second user, the receiving step receives information indicating edits made to the shared playlist by the second user, and the editing step reflects the information indicating the edits in the received shared playlist.

[0007] A schematic diagram showing the configuration of a system according to one embodiment. A schematic diagram showing an overview of processing in the system according to one embodiment. Another schematic diagram showing an overview of processing in the system according to one embodiment. Another schematic diagram showing an overview of processing in the system according to one embodiment. A diagram for explaining editing information according to one embodiment. A flowchart showing processing executed by a control unit of a music performance device according to one embodiment. A flowchart showing another processing executed by a control unit of a music performance device according to one embodiment.

[0008] An embodiment of the present invention will now be described with reference to the drawings. [System Overview] Fig. 1 is a schematic diagram showing the configuration of a system 1 according to this embodiment. The system 1 is a system capable of sharing playlists. As shown in Fig. 1, the system 1 according to this embodiment includes a music performance device 10 and a music performance device 50. The music performance device 10 and the music performance device 50 are information processing devices that can be connected to each other so as to be able to communicate with each other via an Internet communication network or wirelessly.

[0009] 1 illustrates two music performance devices, music performance device 10 and music performance device 50, for the sake of explanation, but three or more music performance devices can be connected to system 1 so that they can communicate with each other. Furthermore, each music performance device included in system 1 can use a common DJ application or music playback application. These applications may be downloaded or installed on each music performance device, or may run on a browser.

[0010] In the system 1, a playlist can be shared from a music performance device 50 that is a sharing source to a music performance device 10 that is a sharing destination.

[0011] 1, the musical piece performance device 10 includes a control unit 11, a display unit 12, and a communication unit 13. The control unit 11 is implemented in the musical piece performance device 10 by, for example, a communication interface, a processor such as a CPU (Central Processing Unit), and memory that serves as a working area, and controls the operation of each unit of the musical piece performance device 10. The control unit 11 includes a performance unit 111, an editing unit 112, a storage unit 113, and an audio output unit 114 that are realized by the processor operating in accordance with a program stored in the memory or received via the communication interface.

[0012] The performance unit 111 performs DJ performance using songs available in the music performance device 10 based on a playlist including song information, song order, and additional information used in the DJ performance of each song.

[0013] The additional information includes various types of information used in DJ performances, such as information based on so-called preparation work, such as analysis of music data, detection of BPM and keys, detection and adjustment of beat positions, setting of cue points, etc. The various types of information used in DJ performances may also include information related to volume and playback speed adjustments, information related to effects, sample rate, bit rate, bit depth, etc.

[0014] In addition to the various types of information used in DJ performances described above, the additional information may include information about the playlist, the songs included in the playlist, and the albums the songs are included in. For playlists, the additional information may include information such as the playlist name, label name, genre, artist name, playlist creation date, playlist creator name, playlist editor name, playlist performance time, playlist storage location, playlist data size and data format, images and theme colors related to the playlist, user comments related to the playlist, and evaluation information such as the number of plays for the playlist.

[0015] For each song included in the playlist, the additional information may include, for example, the song name, label name, genre, artist name, song release date, name of the song's composer, name of the song's lyricist, name of the song's arranger, playing time of the song, storage location of the song, data size and data format of the song, images and theme colors related to the song, user comments about the song, evaluation information such as the number of times the song has been played, etc.

[0016] For an album, the additional information may include, for example, the album name, label name, genre, artist name, album release date, album creator name, album playing time, album storage location, album data size and data format, images and theme colors related to the album, user comments related to the album, and evaluation information such as the number of times the album has been played.

[0017] The music pieces available to the music performance device 10 are music pieces stored within the music performance device 10, or music pieces that the music performance device 10 can acquire from an external source via an arbitrary music playback application, etc. The music playback application may be downloaded or installed on the music performance device 10, or may function on a browser.

[0018] The editing unit 112 creates playlists that include information about songs, the order in which the songs are arranged, and additional information used in the DJ performance of each song, and also edits various playlists. Editing of playlists will be described later.

[0019] The storage unit 113 stores the playlist created or edited by the editing unit 112. The playlist stored in the storage unit 113 can be read, viewed, or shared at any time.

[0020] The audio output unit 114 has an audio output terminal such as a speaker terminal or a headphone terminal, and outputs the audio signal of the music played by the performance unit 111 as audio information. The audio output unit 114 may also include a speaker. The functions and operations of each unit of the control unit 11 will be described in detail later.

[0021] The display unit 12 may include a monitor such as an LCD (Liquid Crystal Display) or an organic EL display, and may display various information to the user by displaying an image. The surface of the display unit 12 may include a touch panel that detects contact.

[0022] The communication unit 13 can be connected to the music performance device 50 via the Internet or wirelessly so as to be able to communicate with each other. The communication unit 13 may execute wireless communication such as Bluetooth (registered trademark), Wi-Fi, or WUSB (Wireless USB), or may execute wired communication such as LAN (Local Area Network) or USB (Universal Serial Bus) instead of or in addition to wireless communication.

[0023] [General Configuration of Musical Piece Performance Device 50] Musical piece performance device 50 includes a control unit 51, a display unit 52, and a communication unit 53, similar to the control unit 11, display unit 12, and communication unit 13 of music piece performance device 10, and control unit 51 includes a performance unit 511, an editing unit 512, a storage unit 513, and an audio output unit 514, which are realized by a processor operating in accordance with a program stored in memory or received via a communication interface. The performance unit 511, editing unit 512, storage unit 513, and audio output unit 514 are similar to the performance unit 111, editing unit 112, storage unit 113, and audio output unit 114 of the control unit 11 of music piece performance device 10, respectively.

[0024] [System Processing Overview] Fig. 2 is a schematic diagram showing an overview of the processing in the system 1. In the system 1, the music performance device 50 ５０ 2, the music performance device 50 is the sharing source, and the music performance device 10 is the sharing destination, and the playlist (hereinafter referred to as the "shared playlist") is shared with the music performance device 10. In the example of FIG. 2, the sharing of the shared playlist is performed only once, with the music performance device 50 as the sharing source and the music performance device 10 as the sharing destination. ５０ Even if the shared playlist is edited in the music performance device 50 based on an operation by the user U, the information is not transmitted to the music performance device 10. １０ Even if the shared playlist is edited in the music performance device 10 based on the operation by the user, the information is not transmitted to the music performance device 50.

[0025] In other words, in the example of Figure 2, once a shared playlist is shared, even if the shared playlist is edited on one of the music performance devices 10 and 50, the edited content is not shared or reflected on the other.

[0026] 3 is another schematic diagram showing an overview of the processing in the system 1. In the example of FIG. 3, after a shared playlist is shared between the music performance device 50 as the sharing source and the music performance device 10 as the sharing destination, as shown in A3, the user U ５０When the shared playlist is edited in the music performance device 50 based on the operation by the user, editing information indicating the edited content is transmitted from the music performance device 50 to the music performance device 10.

[0027] When the music performance device 10 receives the editing information from the music performance device 50, the music performance device 10 edits the shared playlist based on the editing information, as shown in A4, to reflect the edited information in the shared playlist, and updates the shared playlist. １０ Even if the shared playlist is edited in the music performance device 10 based on the operation by the user, the information is not transmitted to the music performance device 50.

[0028] 3, once a shared playlist is shared, if the shared playlist is edited on the music performance device 50, which is the sharing source, the editing information is transmitted to the music performance device 10, which is the sharing destination, and the edited content is shared and reflected on the music performance device 10. However, as shown in A5, if the shared playlist is edited on the music performance device 10, which is the sharing destination, the editing information is not transmitted to the music performance device 50, which is the sharing source, and the edited content is not shared or reflected on the music performance device 50, which is the sharing source.

[0029] 3, as in FIG. 1, for the sake of explanation, two music performance devices, music performance device 10 and music performance device 50, are illustrated. However, if three or more music performance devices are communicably connected to each other, the same processing as that of music performance device 50 is performed in each of the multiple music performance devices that are the sharing destinations. With this configuration, playlists as well as various information necessary for DJ performances can be shared among multiple users corresponding to three or more music performance devices. Furthermore, playlists can be synchronized by reflecting edits made by the sharing user in the playlist shared by the sharing destination users.

[0030] 4 is another schematic diagram showing an overview of the processing in the system 1. In the example of FIG. 4, after a shared playlist is shared between the music performance device 50 as the sharing source and the music performance device 10 as the sharing destination, as shown in A6, the user U５０ When the shared playlist is edited in the music performance device 50 based on the operation by the user, editing information indicating the edited content is transmitted from the music performance device 50 to the music performance device 10.

[0031] When the music performance device 10 receives the editing information from the music performance device 50, as shown at A7, it edits the shared playlist based on the editing information to reflect the information in the shared playlist, thereby updating the shared playlist.

[0032] Also, as shown in A8, user U １０ When the shared playlist is edited in the music performance device 10 based on the operation by the user, editing information indicating the edited content is transmitted from the music performance device 10 to the music performance device 50.

[0033] When the music performance device 50 receives the editing information from the music performance device 10, as shown at A9, it edits the shared playlist based on the editing information to reflect the edited information in the shared playlist, thereby updating the shared playlist.

[0034] In other words, in the example of Figure 4, once a shared playlist is shared, when the shared playlist is edited on either the music performance device 50, which is the source of sharing, or the music performance device 10, which is the destination of sharing, the editing information is sent to the other device, and the editing content is shared and reflected mutually.

[0035] 1 and 3, the example of FIG. 4 illustrates two music performance devices, music performance device 10 and music performance device 50, for the sake of explanation. However, if three or more music performance devices are communicably connected to each other, each of the multiple music performance devices that are the sharing destinations performs the same processing as that of music performance device 50. With this configuration, playlists and various information necessary for DJ performances can be shared among multiple users corresponding to three or more music performance devices. Furthermore, edits made by the sharing and sharing users can be reflected in playlists shared by other users, thereby synchronizing the playlists.

[0036] Each process will be described in detail below. (1) Sharing a Shared Playlist When a shared playlist is shared, approval is first performed using a known approval technique. For example, the music performance device 50, which is the sharing source, selects the playlist to be shared and the sharing destination, and notifies an approval request to any music performance device at the sharing destination. Once approval is received at the sharing destination using authentication information, etc., the shared playlist is shared.

[0037] When a shared playlist is shared, the music performance device 50 that is the source of the sharing may be configured to set at least one of whether editing is possible on any music performance device that is the sharing destination, and the settings for the items that can be edited.

[0038] For example, the control unit 51 of the music performance device 50 that is the sharing source may include a setting unit that performs the above-described settings, and the setting unit sets, for each shared playlist, whether editing is permitted on any of the music performance devices that are sharing destinations, and the items that can be edited. Note that, when editing of the shared playlist is permitted on any of the music performance devices that are sharing destinations, the configuration may be such that editable items and uneditable items can be set. Furthermore, these settings may be configured to be configurable for each of the music performance devices that are sharing destinations. Furthermore, when there are two or more music performance devices that are sharing destinations, the configuration may be such that these settings can be set for each of the music performance devices.

[0039] With this configuration, it is possible to set whether a shared playlist can be edited and the items that can be edited for each sharing destination for one shared playlist. For example, in the system 1, if a shared playlist is not editable in the music performance device 10 that is the sharing destination, as shown in the example of Figure 3, when the shared playlist is edited in the music performance device 50 that is the sharing source, the edited content is shared and reflected in the music performance device 10 that is the sharing destination, but when the shared playlist is edited in the music performance device 10 that is the sharing destination, the edited content is not shared or reflected in the music performance device 50 that is the sharing source.

[0040] Also, for example, in system 1, if a shared playlist can be edited on the music performance device 10, which is the sharing destination, as shown in the example of Figure 4, when the shared playlist is edited on the music performance device 50, which is the sharing source, the edited content is shared and reflected on the music performance device 10, which is the sharing destination, and when the shared playlist is edited on the music performance device 10, which is the sharing destination, the edited content is also shared and reflected on the music performance device 50, which is the sharing source.

[0041] When the music performance device 10, which is the sharing destination, receives the shared playlist, the shared playlist is displayed on the display unit 12. The display of the shared playlist is performed in the same manner as in known techniques. Note that, if the music included in the shared playlist includes a music that cannot be used on the music performance device 10, it is preferable that, when the shared playlist is displayed, the fact that the music cannot be used on the music performance device 10 is clearly displayed.

[0042] (2) Editing of Playlists The shared playlist described in (1) is stored in the storage unit 113 of the control unit 11 of the music performance device 10, which is the sharing destination. The shared playlist can then be edited in various ways by the editing unit 112.

[0043] Editing by the editing unit 112 includes, for example, adding or deleting songs from the shared playlist, changing the playback order of songs, changing the BPM of songs, changing the position of cue points of songs, etc. Furthermore, the editing unit 112 also invites new sharing members to the shared playlist, and approves or rejects the invitation.

[0044] Furthermore, the editing history in the editing unit 112 is stored as editing information in the form of a list or the like in association with the shared playlist. Fig. 5 is a diagram illustrating editing information. For example, as shown in Fig. 5, the editing information includes an editing date C1, an editing time C2, and editing content C3. Fig. 5 is an example of editing information, and the editing information is not limited to this example. For example, more detailed information regarding the editing content C3 may be stored as editing information, or various types of information may be stored hierarchically. Furthermore, a pop-up display, an icon display, or the like may be used to display the editing content.

[0045] This editing information is updated each time an edit is made to a shared playlist. Furthermore, if the sharing of a shared playlist is terminated, the editing history may be deleted. As described above, each user who shares a given shared playlist can easily check the editing information to see when, by whom, and what kind of edits were made.

[0046] The shared playlist can be edited on the music performance device 50 as the sharing source, just like on the music performance device 10 as the sharing destination.

[0047] [Processing in Music Performance Apparatus 10] FIG. 6 is a flowchart showing processing executed by the control unit 11 of the music performance apparatus 10, which corresponds to the processing described with reference to FIG.

[0048] When the control unit 11 determines that the shared playlist transmitted by the music performance device 50 has been received via the communication unit 13 (YES in step S101), the storage unit 113 stores the received shared playlist (step S102).

[0049] Then, when the control unit 11 determines that the editing information transmitted by the music performance device 50 has been received via the communication unit 13 (YES in step S103), the editing unit 112 edits and updates the shared playlist stored in the storage unit 113 (step S104), and the process returns to step S103.

[0050] That is, after receiving the shared playlist in step S101, the editing unit 112 edits and updates the shared playlist every time editing information is received from the music performance device 50 that is the sharing source in step S103.

[0051] 7 is a flowchart showing the processing equivalent to that described in Fig. 4, which is executed by the control unit 11 of the music performance apparatus 10. In steps S301 to S304, the control unit 11 performs the same processing as in steps S101 to S104 in Fig. 6.

[0052] If the control unit 11 determines that the editing unit 112 has edited the shared playlist (YES in step S305), the control unit 11 transmits the edit information to the music performance device 50 via the communication unit 13 (step S306), and the process returns to step S303.

[0053] That is, after receiving the shared playlist in step S301, the editing unit 112 edits and updates the shared playlist every time editing information is received from the music performance device 50 that is the sharing source in step S303. Furthermore, after receiving the shared playlist in step S301, every time the shared playlist is edited in the music performance device 10 that is the sharing destination in step S305, the editing information is transmitted to the music performance device 50 that is the sharing source.

[0054] In addition, each time the music performance device 50, which is the source of sharing, receives editing information, it edits the shared playlist based on the editing information, just like the music performance device 10, which is the destination of sharing, and the editing information is reflected in the shared playlist, thereby updating the shared playlist.

[0055] Effects of the Embodiment The music performance device 10 according to the embodiment described above allows a first user to perform a DJ performance using a playlist containing information about songs, the order in which the songs are arranged, and additional information used in the DJ performance of each song. The music performance device 10 includes a communication unit 13, which is a receiving unit that receives a shared playlist transmitted by a second user who is a sharing source user; a performance unit 111 that performs a DJ performance using songs available on the music performance device 10 based on the received shared playlist; and an editing unit 112 that edits the received shared playlist. When the second user of the music performance device 50, which is the sharing source, modifies the shared playlist, the communication unit 13 receives information indicating the edited content of the shared playlist, and the editing unit 112 reflects the information indicating the edited content in the received shared playlist. This allows multiple users to share playlists and various information necessary for DJ performance. Furthermore, playlists can be synchronized between multiple users.

[0056] In particular, when sharing information about a DJ performance with not only the DJ himself but also musicians and sound and lighting technicians, for example, it is not enough to simply share a playlist of songs in a specified order; instead, various information essential to a DJ performance can be shared and synchronized with information indicating the editing content. This reduces the user's effort and allows for smoother and more reliable information sharing.

[0057] Furthermore, according to the music performance device 10 of this embodiment, when the editing unit 112 changes the shared playlist, information indicating the edited content of the shared playlist is transmitted by the communication unit 13. With this configuration, the edited content of the playlist made on the music performance device 10, which is the sharing destination, can be always synchronized with the music performance device 50, which is the sharing source.

[0058] Furthermore, the system 1 according to this embodiment includes a music performance device 10 and a music performance device 50, and the music performance device 50, which is the sharing source, includes a communication unit 53, which is a transmitter that transmits a shared playlist to the music performance device 10, which is the sharing destination, a performance unit 511 that performs a DJ performance using music available on the music performance device 50 based on the shared playlist, and an editing unit 512 that edits the shared playlist, and when the shared playlist is changed in the editing unit 512, the edited content of the shared playlist is transmitted to the music performance device 10 by the communication unit 53. With this configuration, the edited content of the playlist made on the music performance device 50, which is the sharing source, can be always synchronized with the music performance device 10, which is the sharing destination.

[0059] [Modifications of the Embodiments] The present invention is not limited to the above-described embodiments, and the present invention includes modifications and improvements within the scope of achieving the object of the present invention.

[0060] In the above embodiment, only audio data may be used as music data, or audio data and image data may be used.

[0061] Furthermore, the music performance device having the above-described functions is not limited to the examples described in the above embodiments, and the present invention may also be applied to, for example, computers that run applications, smartphones, and tablet terminals.

[0062] 1...system, 10, 50...music performance device, 11, 51...control unit, 12, 52...display unit, 13, 53...communication unit, 111, 511...performance unit, 112, 512...editing unit, 113, 513...storage unit, 114, 514...audio output unit.

Claims

1. In a music performance device that performs a DJ performance by a first user using a playlist including music information, the order of the music, and additional information used for the DJ performance of each piece of music, a receiving unit that receives a shared playlist transmitted by a second user who is a sharing source user, a performance unit that executes a DJ performance using music that is available in the music performance device based on the received shared playlist, and an editing unit that edits the received shared playlist. When the shared playlist is changed by the second user, the receiving unit receives information indicating the editing content of the shared playlist by the second user, and the editing unit reflects the information indicating the editing content in the received shared playlist. A music performance device characterized by the above.

2. When the shared playlist is changed by the first user in the editing unit, the music performance device according to claim 1, further comprising a transmission unit that transmits the editing content of the shared playlist to the second user.

3. The music performance device according to claim 1 or claim 2, wherein the editing unit edits at least one item among addition or deletion of music, the order of music, the BPM of music, and the position of the cue point of music.

4. The music performance device according to any one of claims 1 to 3, wherein the available music is music stored in the music performance device or music that the music performance device can acquire from the outside.

5. A system including a first music performance device which is the music performance device according to any one of claims 1 to 4, music information, a music order, and a playlist including additional information used for DJ performance of each music, and performing DJ performance by the second user using the playlist, wherein the second music performance device includes: a transmission unit that transmits the shared playlist to the first music performance device which is the sharing destination; a performance unit that executes DJ performance using music available in the music performance device based on the shared playlist; an editing unit that edits the shared playlist; and when the shared playlist is changed by the second user in the editing unit, the transmission unit transmits the edited content of the shared playlist to the first music performance device. A system characterized by the above.

6. The second music performance device further includes a receiving unit that receives information indicating the edited content of the shared playlist in the first music performance device when the shared playlist is changed in the first music performance device, and the editing unit reflects the information indicating the edited content in the shared playlist. The system according to claim 5, characterized by the above.

7. The second music performance device further includes a setting unit that performs at least one of whether editing is possible and setting of editable items in the editing unit of the first music performance device. The system according to claim 5 or claim 6, characterized by the above.

8. A program configured to cause a computer to function as the music performance device according to any one of claims 1 to 4.

9. A method for controlling a music performance device that performs a DJ performance by a first user using a playlist including music information, the order of the music, and additional information used for the DJ performance of each music, the method comprising: receiving a shared playlist transmitted by a second user who is a sharing source user; executing a DJ performance using music available in the music performance device based on the received shared playlist; and editing the received shared playlist, wherein when the shared playlist is changed by the second user, in the receiving step, information indicating the editing content of the shared playlist by the second user is received, and in the editing step, the information indicating the editing content is reflected in the received shared playlist. A method for controlling a music performance device, characterized by the above.

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