Bits of music (6)
I believe the answer is:
pieces
'bits' is the definition.
(I know this)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for pieces that I've seen before include "Portions, parts" , "Fragments" , "Bits < of sandwiches" , "Chessmen" , "Bits, portions" .)