Possible Clues:

• eg Ravel
• Writer with a score to settle?
• One produces notes that others may play
• Short comb -- tricky problem for Barber?
• He scores for players
• Morse cop novel one writes in bars
• Perhaps Berlin fertiliser manufacturer is short of time
• Brahms or Mozart, e.g.
• Person writing a film score
• Arrive shortly with puzzle for creative musician