Rhythm unit with programmed envelope waveform, amplitude, and th
Rhythmic tone generator
Rib reinforced, integral guitar belly
Rigidly constructed portable electric double bass
Rim block for drum
Rim for a banjo
Rim shot segment
Rimless drum structure with tuning device
Ring mute
Robot
Roll-sound performance device and method
Roller bridge saddle
Rotary damper
Rotary damper for generating damping force variable in dependenc
Rotary sound path selector valve for musical wind instruments
Rotary sound path selector valve with biased rotor
Rotary valve for a musical instrument
Rotary valve for brass wind instruments
Rotary valve for musical instruments
Rotary valve of brass instrument