Chin rests for violins; Drumsticks; Guitars; Harp strings; Horns; Musical instruments; Percussion instruments; Piano keyboards; Piano keys; Piano strings; Bellows for musical instruments; Bows for musical instruments; Cases for musical instruments; Conductors' batons; Electronic musical instruments; Musical boxes; Mutes for musical instruments; Pedals for musical instruments; Pegs for musical instruments; Perforated music rolls for use in player pianos; Picks for stringed instruments; Sheet m...