Bows for musical instruments; Cases for musical instruments; Chin rests for violins; Conductors' batons; Guitars; Pedals for musical instruments; Perforated music rolls for use in player pianos; Plectrums; Stands for musical instruments; Strings for musical instruments; Tuning hammers; Turning apparatus for sheet music; Valves for musical instruments; Musical instrument tuning apparatus, namely, machine heads, tuning hammers, tuning keys; Sheet music stands