"Coffee Cantata” composer (4)
I believe the answer is:
bach
'coffee cantata composer' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bach that I've seen before include "Brandenburg Concertos composer, d. 1750" , "German organist and composer, d. 1750" , "musical great" , "Affectionate address" , "German baroque composer, d. 1750" .)