Combined grand piano keyboard cover and auto-play control unit

Combined guiro and shaker

Combined guiro and shaker

Combined guitar and keyboard

Combined guitar and synthesizer keyboard

Combined guitar and synthesizer sound box

Combined guitar and synthesizer sound box, or similar article

Combined mounting ring and thumbrest for a musical instrument

Combined music box and holder therefor

Combined music holder, page turner and foot pedal

Combined musical instrument and microphone

Combined musical triangle and a stand

Combined set of musical instruments and support therefor

Combined stringed instrument and keyboard

Combined tailpiece, bridge and mute unit for a guitar or the lik

Combined tone intensifier and mouthpiece for brass musical instr

Combined violin, shoulder pad and chin rest

Compact guitar tool

Compact pedal board for electronically-operated musical instrume

Compressible guitar pick