Here are some examples of subject headings to use to search for items in the library:
- songs, unaccompanied
- songs with piano.
- sacred songs, unaccompanied
- songs (high voice) with piano
- songs (medium voice) with piano
- songs (low voice) with piano
- sacred songs (high voice) with piano
- sacred songs (medium voice) with piano
- sacred songs (low voice) with piano
- operas -- vocal scores with piano
- operas -- excerpts -- vocal scores with piano
- musicals -- vocal scores with piano
- musicals -- excerpts -- vocal scores with piano
- vocal duets, unaccompanied
- vocal duets with piano
- vocal duets with chamber orchestra
- vocal duets with guitar, etc.
Use similar for trios, quartets, quintets, sextets, etc.