Ariadne's song (4)
I believe the answer is:
aria
This clue might be a double definition.
'ariadne's' is the first definition.
Both the answer and definition are singular nouns.
Perhaps they are linked in a way I don't understand?
'song' is the second definition.
(piece of music in an opera)
Can you help me to learn more?
(Other definitions for aria that I've seen before include "Song for solo voice from an oratorio, cantata etc" , "selection of opera" , "Song, one from 'West Side Story' needing no introduction" , "Summertime perhaps" , "Song from an opera (4)" .)