36results about "Flutes/fifes" patented technology

To bring a tone of a performance assisting tool close to an original tone of an air reed instrument regardless of performance skill of a player.SOLUTION: A performance assisting tool 3 includes: a first face 4 located on a singing mouth 12 side of an air reed instrument MI; a second face 5 located on a lip side of a player; and a flow channel 6 penetrating from the first face 4 to the second face 5 and allowing exhaled breath of the player to flow toward the singing mouth 12. The first face 4 includes: an upper lip area 41 corresponding to an outer face of an upper lip of the player; and a lower lip area 42 corresponding to an outer face of a lower lip of the player. The lower lip area 42 includes a first area 421 and a second area 423. A part of the second area 423 protruding with respect to the first area 421 is installed on an inner side of the singing mouth in a state in which the first area 421 is brought into contact with an outer face of the air reed instrument MI.SELECTED DRAWING: Figure 7

The invention discloses a flute diaphragm installation method and device, and belongs to the field of musical instruments, the flute diaphragm installation device comprises a flute, a flute diaphragm and a structural member, the flute diaphragm is installed on the structural member to form a fixedly-installed flute diaphragm module, the flute diaphragm hole of the flute is matched with the fixedly-installed flute diaphragm module in shape, when the flute diaphragm installation device is used, the fixedly-installed flute diaphragm module is directly installed at the flute diaphragm hole of the flute in a filling mode, and the flute diaphragm installation of the flute is completed. When the flute diaphragm needs to be replaced, the old fixedly-mounted flute diaphragm module is directly pulled out, and a new fixedly-mounted flute diaphragm module is filled, so that the flute diaphragm can be used immediately after being mounted, is quick and convenient, has reliable performance and reduces the damage of the flute diaphragm.

A new flute with a bass expansion assembly can emit sound with pitch lower than d1, and comprises a new flute body and the bass expansion assembly. The outer peripheral wall of the new flute body is provided with a playing sound hole and a plurality of pressing sound holes. The bass expansion assembly comprises a flute tail pipe, two fixing seats, a shaft body and a plurality of sound hole keys. The flute tail pipe is far away from the playing sound hole and is assembled and fixed at one end of the new flute body, and a plurality of expanded sound holes are arranged on the peripheral wall of the flute tail pipe. The two fixing seats respectively extend out of the flute tail pipe. The two ends of the shaft body are fixed to the two fixing bases respectively. Each sound hole key comprises a key tube, a key and a key cover. The key tube is rotatably sleeved on the shaft body. And the key extends out of the key tube. The key cover extends out of the key tube and is fixed on the key tube corresponding to the expansion sound hole. When a player presses down the key, the key cover covers or is far away from the pressing sound hole in a linkage manner.

A wind instrument holder (2) that can be attached or fixed to an adapter element of a carrying device, comprising a spacer compensation rod (23) and an instrument support (20) that can be moved and fixed linearly thereon, on which a wind instrument can be placed, wherein the spacer compensation rod can be moved by means of a pivoting mechanism into various fixable positions, including a defined mounting angle to the carrying device, is intended to enable stepless linear displacement and relative pivoting of the wind instrument holder to the carrying device.This is achieved by the instrument support (20) being linearly displaceable and lockable along the longitudinal axis of the spacer rod (23), the pivoting mechanism being formed next to the spacer rod (23) by a drum end (24), a spring (25), a drum (26), a push button plunger (27) with actuating button (272) and a drum end body (28), wherein the drum (26) has a mounting tab (261) and can thus be attached to the adapter element, and the drum (26) has an inner surface (260) with internal teeth and the push button plunger (27) has an outer detent teeth (270).

The utility model relates to an adjustable flute head and a flute. The adjustable flute head comprises a flute head tube and a movable sleeve. The flute head pipe is provided with a through hole and a blowing hole; the flute head tube is sleeved with the movable sleeve, a membrane hole is formed in the tube wall of the movable sleeve and used for covering the flute membrane, and the movable sleeve can move relative to the flute head tube so that the membrane hole can be selectively overlapped with the through hole or the tube wall of the movable sleeve. The flute comprises the adjustable flute head and a pipe body, and the pipe body is detachably connected with the adjustable flute head. According to the adjustable flute head, the flute can make flute sounds with different timbres only by driving the movable sleeve to move, operation is simple, membrane holes do not need to be formed in the flute body, the risk that the flute body is damaged is reduced, and cost is reduced.

The invention discloses a bottle flute device, belongs to the technical field of national musical instruments, and aims to solve the problems that existing flute musical instruments are complex to manufacture and high in cost, and simple wind instruments are poor in intonation and narrow in range. The device comprises an integrally closed hollow integrated bottle body, an air blowing hole (E) is formed in the side edge of the bottom of the bottle body, and a first through hole (A) with the functions of a sound hole and an air outlet is formed in the top of the bottle body; a plurality of second through holes (B) are sequentially formed in one side of the bottle body from top to bottom, two third through holes (C) are formed in the other side of the bottle body, and the second through holes and the third through holes have the functions of sound holes and air outlets. The tones of the bottle flute can be E tones or F tones, other tones are set according to reference, the size of each part is accurately set in millimeter, the parameter design is based on the acoustic resonance principle, and the effective volume of the resonance cavity is changed by adjusting the opening and closing of the sound hole to realize sound production of different pitches. The manufacturing process is simplified, the cost is reduced, intonation is stable, the range is complete, portability is high, operation is easy, the method is suitable for professional playing and beginners, and the service life is long.

The utility model discloses a straight and transverse dual-purpose bass flute, comprising a flute body, one end of which is fixedly provided with a plugging sleeve; the right-angle bent pipe assembly and the mouthpiece pipe assembly are detachably connected with the plugging sleeve in a plugging manner and are used for playing a bass flute in a straight manner; and the U-shaped bent assembly and the air blowing pipe assembly are in separable insertion connection with the insertion sleeve and are used for replacing the first air blowing pipe assembly so that the bass flute can be played in a horizontal mode. According to the bass flute, switching of two playing modes is realized through part replacement, the bass flute is convenient to carry, and the playing cost is reduced.

The present invention discloses a whole-section adjustable-pitch bamboo flute. The whole-section adjustable-pitch bamboo flute includes a flute tube, a tuning member, and a limiting and fixing member. The tuning member has a fixing plate and a baffle plate that are bent relative to each other. The fixing plate is connected to the flute tube, and the baffle plate is adapted to the inner wall at one end of the blowing hole and extends downward along the inner wall edge into the cavity of the flute tube. The limiting and fixing member is arranged on the flute tube to fix the fixing plate to the flute tube. By setting the bamboo flute as a whole-section type, the present invention can maximize the sound quality of the bamboo material and is not easily cracked. Secondly, by arranging a tuning member composed of a fixing plate and a baffle plate with relative bending at the blowing hole of the flute tube, the baffle plate extending into the blowing hole can guide the airflow direction into the cavity of the flute tube, and by adjusting the bending angle between the baffle plate and the fixing plate, the incident angle of the airflow entering the cavity of the flute tube is controlled, so as to achieve the purpose of adjusting the pitch of the bamboo flute, improve the performance effect, and the tuning member is fixed on the surface of the flute tube without damaging the bamboo flute body, ensuring the authenticity of the sound of the bamboo flute.

A new duct head wind instrument with a compression duct having a multi-section resonating tube containing a plurality of tone holes with a headjoint, neck, upper and lower body and footjoint. The new instrument embodies improvements for wind instruments, duet heads, and compression ducts. These improvements result in increased range, playability, stability, tunability, dynamic range, projection, harmonic stability, responsiveness, tonal characteristics, and ergonomics.

The present invention relates to a head joint for a wind instrument, having a mouthpiece and a reed portion, and a wind instrument comprising same and, more particularly, to a head joint for a wind instrument, having a mouthpiece and a reed portion, and a wind instrument comprising same, the head joint allowing for an extended range of one octave lower, i.e. extended lower notes, than the range of a two-side-open wind instrument by adding the range of a one-side-open wind instrument, which is played through a reed, to the range of a two-side-open wind instrument which only has a mouthpiece.The head joint for a wind instrument, having a mouthpiece and a reed portion, according to the present invention has a tubular shape having one end closed, wherein the mouthpiece and the reed portion are formed, so as to be spaced apart from each other, at a certain distance from the end.

The utility model relates to an improved flute for teaching, which comprises a flute body, a flute head of the flute body is provided with an open hole, the outside of the flute body is provided with a blow hole, and the outer surface of the flute body is provided with an air channel groove between the open hole and the blow hole; the flute body is sleeved with the pipe sleeve, two sliding rail grooves are formed in the outer surface of the flute body, two sliding rail strips are fixed to the inner surface of the pipe sleeve, the two sliding rail strips slide in the two sliding rail grooves respectively, and a membrane hole and a plurality of finger holes are formed in the outer portion of the flute body. The bamboo flute is convenient for a beginner to learn, the mouthpiece does not need to be detached, the flute can be used for two purposes by moving the pipe sleeve fitting on the front section of the flute body, the flute can be played by holding the flute horizontally and vertically, the beginner is helped to cross the difficulty of blowing, directly and quickly feel the charm of the traditional bamboo flute, additional mouthpiece fittings are not needed, and the mouthpiece does not need to be cleaned before and after playing, so that the bamboo flute is clean and sanitary; and when the flute is not played, the blowing nozzle and the flute diaphragm are respectively protected in two clamping modes.

A sensor module for electronic wind instrument according to an embodiment of the disclosure includes a main flow path positioned between an air inlet and an exhaust port for exhaled air formed on an outer surface of a housing of an electronic wind instrument; a branch flow path branching to intersect with the main flow path; and a sensor positioned in the branch flow path and detecting changes in airflow in the branch flow path caused by changes in exhaled air flowing in the main flow path, in which a cross-sectional area of a first opening of the branch flow path formed at a connection portion between the main flow path and the branch flow path is smaller than a cross-sectional area of the main flow path at the connection portion.

The utility model provides a novel two-section wooden flute, which comprises a wooden flute body tube and a wooden flute head tube. The wooden flute body pipe is internally provided with a first playing space, two sides of the first playing space are respectively provided with a communication opening and a sound outlet opening, and the peripheral wall of the first playing space is provided with a plurality of pressing sound holes communicated with the first playing space. A wooden flute head tube is assembled and fixed to the wooden flute body tube, a second playing space communicated with the first playing space is formed in the wooden flute head tube, a playing sound hole communicated with the second playing space is formed in the peripheral wall of the wooden flute head tube, and the playing sound hole is used for a player to blow in airflow into the playing space, so that playing sound waves are generated. According to the novel two-section wooden flute provided by the utility model, the wooden flute body tube and the wooden flute head tube with normalized inner diameters are respectively processed and manufactured by wood, and both the wooden flute body tube and the wooden flute head tube have higher roundness, so that the sound volume can be increased when the flute is played, and the timbre is firmer.

The invention relates to an alto flute set having a flute body (5) with tone holes, one mouthpiece (1), a straight extension (3) connectable to the flute body (5) and to the one mouthpiece (1), a curved extension (4) connectable to the flute body (5) and to the one mouthpiece (1).

The invention relates to the technical field of musical instruments, and particularly discloses a multi-mode mouthpiece-replaceable musical instrument structure, which comprises detachable multi-style musical instrument sockets, different styles of vertical bamboo flute sockets and improved flute heads with external notches, a musical instrument tube body; the musical instrument tube body is provided with four sections which are sequentially numbered as a first section, a second section, a third section and a fourth section from top to bottom; a plurality of male and female plug-in units are arranged, one male and female plug-in unit is installed at the top end of each section of the musical instrument tube body in an inserted mode, and every two adjacent sections of the musical instrument tube bodies are installed together through the corresponding male and female plug-in unit; through cooperative work of the multiple sections of musical instrument pipes, the multiple male and female plug-in units and the multiple mouthpieces, the male and female plug-in units can install different mouthpieces on the musical instrument pipes, the problem that mouthpieces of traditional musical instruments are fixed is solved, diversified playing requirements can be met, a player can split the whole musical instrument into four sections by means of the male and female plug-in units, and the musical instrument is convenient to use. And the music player can be easily carried outdoors for playing.

The invention discloses an efficient sound increasing type bamboo flute and a manufacturing process thereof. The process comprises the four steps of flute pipe pretreatment and resonance optimization, sound hole acoustic processing, composite acoustic coating forming and sound wave guiding calibration. In the whistle pipe pretreatment stage, microwave-low-frequency sound wave composite treatment is adopted to regulate and control the moisture content of raw materials and activate acoustic performance, and meanwhile, a multi-stage resonance structure is processed; sound hole machining is based on an acoustic model, and high-precision numerical control machining is combined with ultrasonic polishing and laser cladding strengthening; the composite acoustic coating adopts a three-layer structure of bottom layer permeation, middle layer compounding and surface layer adaptation; and finally, through initial adjustment, fine adjustment and temperature and humidity-vibration composite stability testing in a standard acoustic environment, acoustic performance is ensured to reach the standard. According to the technology, the volume and sound wave propagation efficiency of the bamboo flute can be remarkably improved, meanwhile, intonation stability and structural durability are guaranteed, and the technology is suitable for batch production of bamboo flutes with different adjustments and has the advantages of being standard in technology, high in controllability and excellent in product acoustic performance.

The utility model discloses a novel flute with a trill key assembly. The trill effect can be unified when C trill is played. The novel flute comprises a novel flute body, two fixing seats and a tremolo button assembly. The outer peripheral wall of the new flute body is provided with a playing sound hole, at least one tremolo key pressing sound hole and a plurality of finger pressing sound holes, and the tremolo key pressing sound hole is closer to the playing sound hole than the finger pressing sound holes. The two fixing seats are respectively fixed on the peripheral wall of the new flute body; the tremolo key assembly comprises a key shaft, at least one tremolo operation key and at least one key cover. The two ends of the key shaft are pivoted to the two fixing bases respectively. The tremolo operation key is fixed on the key shaft. The key cover corresponds to the tremolo key sound pressing hole and is fixed on the key shaft. When a player presses down the tremolo operation key, the key cover is kept away from the tremolo key sound pressing hole in a linkage mode. When a player loosens the tremolo operation key, the key cover covers the tremolo key sound pressing hole in a linkage manner, so that tremolo is played when the tremolo operation key is continuously pressed down and loosened in a switching manner.

A sensor module (Sa, Sb) for electronic wind instrument of the disclosure includes a main flow path (314a, 315a, 323, 326, 355) positioned between an air inlet (310, 311) and an exhaust port (334, 335) for exhaled air formed on an outer surface of a housing (32, 33) of an electronic wind instrument (1, 201); a branch flow path (356, 380) branching to intersect with the main flow path; and a sensor (360, 363) positioned in the branch flow path and detecting changes in airflow in the branch flow path caused by changes in exhaled air flowing in the main flow path. A cross-sectional area of a first opening (356a, 380a) of the branch flow path formed at a connection portion between the main flow path and the branch flow path is smaller than a cross-sectional area of the main flow path at the connection portion.

The invention relates to the technical field of flutes, and discloses a multifunctional semitone conversion flute, which comprises a flute head part, a semitone conversion part and a flute tail part, the semitone conversion part comprises an inner sound hole pipe, an upper handle position semitone switching pipe and a lower handle position semitone switching pipe, wherein the upper handle position semitone switching pipe and the lower handle position semitone switching pipe are rotatably connected to the inner sound hole pipe. Six sound holes are sequentially formed in the inner sound hole tube; a plurality of different upper sound hole groups are formed in the upper handle position semitone switching tube, and at least one of the plurality of upper sound hole groups is provided with semitone holes; a plurality of different lower sound hole groups are formed on the lower handle position semitone switching tube, at least one of the plurality of lower sound hole groups is provided with semitone holes, and each upper sound hole group and each lower sound hole group are respectively provided with three outer sound holes. By rotating the upper handle position semitone switching tube and / or the lower handle position semitone switching tube and arranging the semitone holes in the sound hole group, the semitone can be switched when fingering needs to be changed when different tones are blown, the intonation of the switched semitone is stable, and the problems that the intonation of pressing the semitone is unstable and the technical requirement for a player is high in the prior art are solved.

The utility model relates to a kind of multifunctional combination flute, including playing section, membrane hole section and finger hole section, playing section, membrane hole section and finger hole section all include at least two kinds;Playing section, membrane hole section and finger hole section can be combined according to the requirement of playing through cannula and inner sleeve pipe insertion connection.The multifunctional combination flute of the utility model, playing section, membrane hole section and finger hole section can include at least two kinds, when playing, user can flexibly assemble according to the need of playing, assemble into at least 8 flutes, in this way, the number of flute carried can be greatly reduced, and the function of flute is expanded.By the way of cannula and inner sleeve pipe insertion connection, the air tightness of connecting part can be guaranteed, and the tone of flute is guaranteed.By setting reinforcing sleeve ring on the outer wall of connecting part, the end surface of connecting part can be protected, preventing deformation or cracking of flute pipe, and prolonging its service life.

The utility model relates to a bamboo-wrapped wood flute, which comprises a tube body, a blowing hole, a film hole, a finger hole, a fundamental tone hole and a sound outlet hole are arranged on the tube body, and a flute film is adhered to the film hole, and is characterized in that the tube body comprises an outer tube and an inner tube, the outer tube is made of bamboo pole materials, the inner tube is made of dalbergia huangshanensis wood, an axial cylindrical through hole is arranged in the outer tube, and the outer tube is provided with a through hole. The inner pipe is a cylindrical inner pipe, the outer diameter of the inner pipe is matched with the inner diameter of the cylindrical through hole in the outer pipe, the inner pipe is sleeved with the outer pipe, the outer pipe is fixedly connected with the inner pipe in a bonding mode through glue, and a conical hole is formed in the inner pipe in the axial direction. The bamboo-wrapped wood flute provided by the utility model has high timbre and intonation, and the sounding quality of the flute is improved.

The utility model discloses an irish flute airflow detection system based on airflow sensor relates to airflow detection technical field, apply to irish flute body, including airflow detection device, controller and OLED display screen, the airflow detection device is including air intake cover, the air intake cover one side is provided with and blows the pipe, the other side of air intake cover is provided with the installation cabin, is provided with airflow sensor in the installation cabin, the air intake cover is used for guiding airflow to the airflow sensor entrance, the installation cabin is provided with positioning assembly away from the one end of air intake cover, and the positioning assembly is used for fixing irish flute body. The utility model discloses convenient data analysis, obtains airflow curve through the continuous monitoring of the flow rate or pressure, can be used for identifying normal blowing and abnormal state such as broken sound, improves the accuracy of identification.

The utility model provides a bamboo flute with a stable support, which comprises a first flute rod and a second flute rod, the first flute rod and the second flute rod are mutually butted and communicated through a connecting sleeve, the first flute rod and the second flute rod are mutually combined and separated through the connecting sleeve, and the first flute rod is sleeved with a supporting assembly; the supporting assembly comprises a triangular supporting piece, a lower seat body, a positioning part, a spring and a pressing part; and the triangular supporting piece is sleeved on the first flute rod. According to the utility model, the supporting assembly and the flute rod are connected in a sleeving manner, so that the flute rod is positioned, the flute rod is supported by using the structural characteristics of the assembly, the phenomenon that the flute rod rolls when being placed is avoided, and the supporting assembly is moved and adjusted, so that the mouth sound blowing opening is blocked, and therefore, the sound opening can be prevented from being contaminated by dust, and the service life of the flute rod is prolonged. Cleanness is guaranteed, and people can conveniently blow the air when using the air purifier.

The utility model provides a cucurbit flute convenient to operate. The cucurbit flute comprises a cucurbit body. According to the cucurbit flute convenient and fast to operate, the blocking device capable of sliding is installed on the surface of the auxiliary pipe, the position of the blocking device is pushed according to needs, the high pitch hole is blocked and opened, opening and closing actions are conducted through pushing force, and opening and closing can also be conducted through pulling force; the calabash can be flexibly opened and closed in a push-pull mode under the condition that arms of different age groups are different in length, the operation mode is convenient and simple, meanwhile, the ends of the main pipe and the auxiliary pipe are in a conical pipe shape, sealing gaskets are arranged on the surfaces of the main pipe and the auxiliary pipe, when the main pipe and the auxiliary pipe are embedded into a connecting block connected with the calabash body, the sealing gaskets are embedded into sealing grooves, and the good sealing effect is kept; and the auxiliary pipe is limited by the auxiliary pipe fixing block, the traditional limiting mode that an iron sheet is installed on the surface of the main pipe through a screw to limit the auxiliary pipe is different, the production cost is saved, the labor intensity of operators is relieved, and the operation convenience of the device is improved.

The utility model discloses a flute B-drop tail pipe, which comprises a flute tail pipe body, a B-tone-drop flute head is clamped on the outer side of the flute tail pipe body, an installation mechanism is arranged on the outer side of the B-tone-drop flute head, a sound blowing hole is arranged in the B-tone-drop flute head, the installation mechanism comprises a connecting ring, the connecting ring is fixedly connected on the outer side of the flute tail pipe body, and the sound blowing hole is arranged on the outer side of the flute tail pipe body. A connecting ring is fixedly connected to the outer side of the tail pipe body, a positioning groove is formed in the connecting ring, a clamping plate is fixedly connected to the outer side of the drop B tone flute head, a limiting hole is formed in the clamping plate, a rubber ring is fixedly connected to the outer side of the connecting ring, and a fixing rod is arranged in the rubber ring. According to the flute tail pipe, one end of the fixing rod enters the limiting hole in the clamping plate, and certain friction force exists between the fixing rod and the rubber ring, so that the clamping plate can keep stable in the positioning groove, and the condition that the position of the B-tone lowering flute head deviates on the outer side of the flute tail pipe body is prevented.

The utility model provides a fixing device for a left auxiliary pipe and a right auxiliary pipe for a cucurbit flute. The main pipe is arranged on one side of the surface of the auxiliary pipe fixing blocks, the two auxiliary pipe fixing blocks are arranged on the two sides of the outer surface of the main pipe respectively, a hoist body is arranged on the top of the main pipe, and sleeves are fixedly installed on the three sides of the bottom of the hoist body respectively; and the two auxiliary pipes are respectively arranged in the two casing pipes. According to the fixing device for the left auxiliary pipe and the right auxiliary pipe for the cucurbit flute, through integrated production, the two auxiliary pipe fixing blocks are fixed to the two sides of the surface of the main pipe respectively, the integrated forming stability is more obvious, later installation is not needed, the manual manufacturing procedure is omitted, the labor intensity of machining personnel is relieved, and the fixing device is not prone to falling off and rusting; and the overall attractiveness of the cucurbit flute is improved.

The utility model relates to the technical field of flutes, and discloses a wooden short flute, which comprises a flute body and a flute plug arranged in the flute body, a flute head used for pushing the flute plug to move is inserted in the end part of the flute body, the flute head comprises a chute sleeve inserted in the end part of the flute body, a spiral groove is arranged in the chute sleeve, and the flute plug is arranged in the chute sleeve. The end part of the chute sleeve is rotationally connected with a rotating part, a pushing part connected with the flute plug is arranged in the rotating part, the rotating part is rotated, and the pushing part can move under the limitation of a spiral groove in the chute sleeve, so that the flute plug is pushed to move in the flute body. Through the cooperation of the above structures, the distance between the flute plug and the blow hole can be observed from the outside in real time by observing the distance between the pointer and the blow hole identification, the fine tuning of the flute plug can be more accurate with the assistance of the scale identification, and the flute plug is convenient for a player to adjust the flute plug according to the actual demand. Performances such as intonation and timbre of the flute are changed by finely adjusting the position of the flute plug.

This utility model discloses a keyed bass flute, comprising a flute tube with an inner diameter of 20 mm, a blowhole section and a sound-producing section, the sound-producing section being 605 mm long. The blowhole section has a blowhole and a membrane hole. The sound-producing section, along its length, has twelve finger holes, a fundamental tone hole, and a rear sound hole. The twelve finger holes, from the fundamental tone hole to the membrane hole, are arranged in the following order: first little finger finger hole, first ring finger finger hole, first middle finger finger hole, first index finger finger hole, first interlocking key finger hole, second little finger finger hole, second ring finger finger hole, second middle finger hole, second interlocking key finger hole, second thumb finger hole, second index finger hole, and thumb single-key finger hole. This keyed bass flute, through simple keying and adjustment of the ratio of inner diameter to tube length, achieves the requirements of twelve-tone equal temperament, making modulation convenient. Each semitone has a finger hole, ensuring accurate modulation.

An interval Lc between an opening edge 310a of an upper blowing port 310 and an opening edge 311a of a lower blowing port 311 in the circumferential direction is formed larger than both an opening dimension La of the upper blowing port 310 and an opening dimension Lb of the lower blowing port 311 in the circumferential direction. This configuration restrains breath blown into one of the upper blowing port 310 and the lower blowing port 311 from being introduced into the other. Since the blowing ports 310 and 311 are formed on a bottom face 318a of a recessed part 318, a necessary amount of breath is easily introduced into each of the blowing ports 310 and 311 without being diffused. Thus, exhalation of the player can be accurately detected.