Rear operated control device for guitar

Rear-access trussed neck construction for stringed musical instr

Reduced friction piano action pins

Reduction of longitudinal modes in musical instruments strings

Regulating button mechanism for easily regulating escape...

Reinforced musical instrument string

Reinforced neck for stringed musical instruments

Reinforced sound board used in musical instrument

Reinforced stringed musical instrument neck

Reinforcing braces for stringed musical instruments and...

Reinforcing structure for the neck portion of stringed...

Relative chord keyboard instructional method

Releasable tremolo lock device

Releasable tremolo lock device

Removable frets for fretted stringed musical instruments

Repositionable tuning peg

Resonance bracing for stringed musical instrument

Resonator guitar simulator

Restraint for endpin of a cello or other floor-resting...

Retractable fret system for stringed instruments