Open-close structure for a keyed instrument

Open-sided musical drum

Opening and closing assist for a front lid of a keyboard...

Opening/closing apparatus of keyboard cover

Opening/closing mechanism for a keyboard instrument cover

Operated position detecting apparatus and electronic musical ins

Operating apparatus used at an electronic instrument provided wi

Operating member control device of electronic musical instrument

Operating panel device in electronic musical instrument

Operation detection switch, musical instrument and parameter...

Operational history control device for an electronic musical ins

Optical instrument pickup

Optical pickup for use with a stringed musical instrument

Optical sensor for sensing displacement speed or displacement of

Optimal looping for wavetable synthesis

Optimal looping for wavetable synthesis

Optimization of waveform operation in electronic musical instrum

Optoelectric transducer system for stringed instruments

Optoelectronic sound amplifier system for musical instruments

Oral cavity size controlled musical sound apparatus and method