Possible Clues:

• Pitmen?
• Mistake roar over box for making music
• Her actors are terrible players
• I'm leaving choir master to sort out the musicians
• Large band
• Where those on the fiddle may know the score?
• Choirmaster (not married one) composed for many players
• Actor starts to recite Hamlet's speech — exciting poor folk in the pit
• Group of instrumentalists
• Large musical group