Sheet music (3)
I believe the answer is:
rag
This clue is a double definition.
'sheet' is the first definition.
('rag' can be a synonym of 'sheet')
'music' is the second definition.
(rag is a kind of music)
(Other definitions for rag that I've seen before include "played by Scott Joplin?" , "Small piece of cloth and university week" , "Sensational paper" , "Practical joke" , "Piece of old cloth" .)