[ Acoustic basses; Acoustic guitars; Bass guitars; Capos; Drum pedals; Drum practice pads; Drumheads; Drumsticks; Electric bass guitars; Electric basses; Electric guitars; Electric and electronic musical instruments; ] Electronic musical instruments; Guitar accessories, namely, guitar slides; Guitar bridges; [ Guitar pedals; Guitar picks; ] Guitar playing assistance devices, namely, a sliding clamp-like structure positioned onto the guitar neck to form and sound guitar chords and notes; [ Gui...