Tune I’m playing is dance music (6)
I believe the answer is:
minuet
'is dance music' is the definition.
(I've seen this in another clue)
'tune i'm playing' is the wordplay.
'playing' indicates anagramming the letters.
'tune'+'im'='tuneim'
'tuneim' anagrammed gives 'MINUET'.
(Other definitions for minuet that I've seen before include "Slow, graceful dance" , "Gracious old dance, just takes a minute" , "Stately C 18 dance" , "Stately court dance" , "Stately old dance, takes only a minute" .)