Music that introduces an act in an opera (7)
I believe the answer is:
prelude
(Other definitions for prelude that I've seen before include "Curtain-raiser" , "Introductory passage" , "Preamble" , "Introductory part, say of poem" , "Overture" .)
I believe the answer is:
prelude
(Other definitions for prelude that I've seen before include "Curtain-raiser" , "Introductory passage" , "Preamble" , "Introductory part, say of poem" , "Overture" .)