castanets
Untuned percussion instrument popular in Spanish music.
hi-hat cymbals
Untuned percussion. Used as part of a drumkit, they consist of two cymbals (one upside down) that are opened and closed with a foot pedal.
bongo drums
Untuned percussion. Fairly high pitched drums joined in pairs and played with the hands.
rolls
A very fast repetition of a note on a percussion instrument e.g. snare drum