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G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
G10D7/00—General design of wind musical instruments
G10D7/02—General design of wind musical instruments of the type wherein an air current is directed against a ramp edge
G10D7/04—General design of wind musical instruments of the type wherein an air current is directed against a ramp edge with Helmholtz resonators, e.g. ocarinas
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Soundproofing, Sound Blocking, And Sound Damping
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