Chord hand callus exerciser

Chord hand finger conditioner for guitar players

Corrective jaw position indicator for proper playing of wind-typ

Device for mouthpiece exercises for a woodwind instrument

Drummers foot exerciser and bass drum practice pedal

Fitness fingerboard for guitarists

Hand stretcher for musicians

Mouthpiece practice holder and tuning adjuster

Piano keyboard shield

Piano keyboard shield

Piano type musical instrument

Playing aid for keyboard instruments

Pocket finger exercise board

Portable electronic ear-training apparatus and method therefor

Portable exerciser for stringed instrument players

Practice appliance

Stringed instrument finger training device

Stringed instrument for play training

Stringed musical instrument

Stringed simulator