Musical instrument bows; Acoustic guitars; Guitar picks; Shoulder rests for violins; Chin rests for violins; Violins; Violas; Oriental fiddles (kokyu); Horsehair for violin bows; Chin rests for violins and violas; Horsehair for use in making violin bows; Violin chin rests; Violin bow-hold teaching devices; Cellos; Double basses; End pins for cellos; End pins for double basses; Cello endpin stoppers; Endpins for cellos; Cello end pin stoppers