Calculator for guitar chords

Calculator for guitar scales

Camera assembly for finger board instruments

Case for musical instruments

Case for musical instruments

Choral keyboarding non-note reading methodology

Chord constructer

Chord display apparatus and storage medium

Chord display device for fretted string instrument

Chord fingering coordinator

Chord hand callus exerciser

Chord hand finger conditioner for guitar players

Chord indication apparatus and method, and storage medium

Chord indicator for instruments having organ and piano-type keyb

Chord key calculator assembly

Chord key for musical instruments

Chord progression based techniques and tools for learning to...

Chord progression finder

Chord progression selector

Chord selector for keyboard musical instruments