6results about How to "Easy to play" patented technology

The utility model discloses an auxiliary string pressing device for guitar playing, and relates to the technical field of musical instrument assistors, the auxiliary string pressing device comprises a support seat and a plurality of elastic string pressing arms, one end of each elastic string pressing arm is connected with the support seat, the support seat is provided with a connecting piece capable of being detachably connected with a guitar, and each elastic string pressing arm is provided with a key and a string pressing block, the string pressing device further comprises at least one string pressing operation rod connected with the key and / or the string pressing block, the string pressing operation rod is perpendicular to the support base and can penetrate through at least one elastic string pressing arm, the corresponding elastic string pressing arm is provided with an avoiding channel for the corresponding string pressing operation rod to movably penetrate through, and a reset structure is arranged between the string pressing operation rod and the support base. The avoiding channels are channels formed by avoiding holes formed in the corresponding elastic string pressing arms or notch grooves formed in the edges of the corresponding elastic string pressing arms. According to the invention, more elastic chord pressing arms can be conveniently installed, and more chord playing can be satisfied after one-time installation.

The invention belongs to the technical field of stringed instruments, and discloses a chord instrument and a working method.The chord instrument is provided with multiple chords and moves a tone modifying pressing ring, so that chord playing and tone modifying are easily and conveniently achieved, and the chords comprise the third chord, the seventh chord, the ninth chord, the eleventh chord, the thirteenth chord and the like; if the tone-modifying pressing ring moves to the same character and cannot completely correspond to the chord of a certain musical scale, corresponding operation (for example, adjacent musical notes are pressed down) can be added to achieve musical note playing of the chord with the tone of rising and falling. The chord musical instrument can play melody like a guitar, and is rich in expressive force, flexible to play, simple and practical on the basis of fixed tuning of the chord. What is worthy of being focused is that tedious fingering of the chord musical instrument is eliminated, a large amount of skilled memory is not needed, the chord musical instrument is fast and easy to master, and modulation difficulty is simplified.

A children's piano comprises a piano frame, one side of the piano frame is provided with piano keys, and the other side is provided with a sound cavity; the piano keys extend to the inner side of the sound cavity after passing through a partition; in the sound cavity, a sound-generating device for generating sound by striking the piano keys is provided on the upper side of the piano keys, and a sound cavity cover is detachably fixed on the top of the sound-generating device; the sound-generating device comprises a group of sound tubes, and the sound tubes are fixedly mounted on a sound tube bracket through gaskets; the sound tubes comprise a plurality of metal hollow tubes arranged in sequence, and the plurality of metal hollow tubes are arranged in a structure according to musical temperament with different lengths; the gasket is provided with slots corresponding to the metal hollow tubes, and the plurality of metal hollow tubes are installed and fixed in the plurality of slots at intervals; a piano key mounting seat is installed between the piano keys and the bottom plate of the piano frame, and soft pads for eliminating noise are provided on the piano key mounting seat, the bottom surface of the partition and the bottom plate of the piano frame at the parts that contact the piano keys when they move.

The invention relates to a harmonica (100) comprising at least: a. a comb (130) comprising a plurality of chambers (131); b. a first plate (110) comprising a plurality of blow reeds (111); c. a second plate (120) comprising a plurality of draw reeds (121); the harmonica (100) being characterized in that: d. each chamber of the plurality of chambers (131) comprises at least one material protrusion, each material protrusion being configured to reduce the oscillation space of a draw reed (121); and in that the harmonica comprises: at least one additional plate (150) arranged above the first plate (110) and comprising a plurality of additional material protrusions (155), each additional material protrusion (155) of the plurality of additional material protrusions (155) being configured to reduce the oscillation space of a blow reed (111).

The present invention provides an automatic arrangement method, an automatic arrangement device, and a computer program product, which can produce arrangement data that is easy to play and has a reduced number of simultaneously sounding notes from musical piece data. The present invention determines an outer sound symbol, and the outer sound symbol is the highest in pitch among notes that have substantially the same sounding start time in a melody part obtained from the musical piece data. A melody part from which an inner sound symbol is deleted is produced, and the inner sound symbol starts to sound during the sounding period of the outer sound symbol and is low in pitch. For each pitch range in which the pitch range of one octave is staggered by one semitone, a candidate accompaniment part in which the root notes of each chord of the chord data of the musical piece data are arranged to sound at their sounding timing is produced, and an accompaniment part is selected therefrom. The arrangement data obtained from the melody part and the accompaniment part can be set as arrangement data that is easy to play and has a reduced number of simultaneously sounding notes.

This invention discloses lactic acid bacteria strains capable of converting rutin and their application in the fermentation of locust flower yogurt. The lactic acid bacteria strains are *Enterococcus faecium* Y4-1, *Enterococcus faecium* Y4-2, and *Lactococcus petauri* Y5-4. When used as starter cultures, these lactic acid bacteria strains can metabolize rutin into flavonoids such as quercetin and isoquercetin, improving the total flavonoid content and antioxidant activity of the fermented food. The resulting set-type locust flower yogurt is uniformly pale yellow, with a rich and distinctive locust flower aroma, good coagulation without impurities, no whey separation, a sweet and sour taste, excellent sensory properties, and high DPPH free radical scavenging capacity and Fe... 2+ Its chelating capacity and total antioxidant capacity are superior to those of locust flower yogurt produced with commercial starter cultures.