Guitar parts, namely, tremolo systems and parts; nuts; bridge kits; bridge pins; saddles; tailpieces, tuners; upgrade parts

String instruments; Musical instruments, namely, string basses; Musical instrument tuning apparatus, namely, machine heads, tuning hammers, tuning keys; Musical instruments; Guitar playing assistance devices, namely, a sliding clamp-like structure positioned onto the guitar neck to form and sound guitar chords and notes; Guitar picks; Guitar bridges; Guitar accessories, namely, guitar slides; Bridges for musical instruments