Castanets; Plectrums; Bags and cases specially adapted for holding or carrying drumsticks; Carrying cases for musical instruments; Cases for musical instruments; Collapsible guitar stand and seat combination; Conductors' batons; Covers adapted for guitars; Drums and percussion instruments; Guitar accessories, namely, guitar slides; Guitar armrests; Guitar picks; Guitar playing assistance devices, namely, a sliding clamp-like structure positioned onto the guitar neck to form and sound guitar c...