Keyboard musical instrument with solenoid-operated actuators arr

Magnetic valve system for a musical instrument

Mechanical music box

Mechanical musical movement with electronic light control

Mechanism for imparting oscillating movement to an ornamental ob

Method and apparatus for actuating solenoids in a player piano

Method and apparatus for altering actuator drive in a reproducin

Method and apparatus for producing variable intensity in a piano

Method and apparatus for re-creating expression effects on solen

Method and apparatus for reproducing a musical presentation

Method and apparatus for reproducing pedaling effects in a piano

Method and apparatus for sensing key movement in a musical...

Method and apparatus for sensing, controlling and recording...

Method and device for converting source piano playing data for a

Method for retrofitting acoustic keyboard musical...

Method for teaching musical notation and composition

Mobile music-producing ornament

Motion generating mechanism for a music box

Motion generation mechanism for a music box

Motor driving electronic music box