Action for electronic piano

Action for keyboard-based musical instrument

Action mechanism for a keyboard of an electronic piano

Adjustable keyboard apparatus and method

Antibacterial keyboard

Antibacterial keyboard

Apparatus and method for actuating keyboard mechanisms and...

Apparatus and methods for modifying piano keyboards

Apparatus for musical scale selection and key signature actuatio

Arm and key bed assembly for a piano and the like

Arrangement for chromatic and diatonic keys for carillon keyboar

Auxiliary snap-on key extenders for musical keyboards

Balance pin assembly for a piano key

Bicameral scale musical instruments

Black key for keyboard instrument and method of...

Ceramic parts for stringed musical instruments

Collapsible musical keyboard

Compact chord organ

Compact device for adjusting piano key touch weight

Compact keyboard apparatus with accurate detection of key...