I don't know it's name or the name of the composer, or even that it is indeed from the 'classical' era.
I originally heard it on a Youtube playlist found when searching for something along the lines of "dark creepy orchestral music". The playlist has since been removed.
The song is mostly quiet all the way through and features a (presumably) male duet singing in close harmony, high key in predominantly minor haunting phrases.
I cant use any tune humming apps as I cant hit the notes and iIcant remember much of the tune.
The composer, I believe, was Italian (again, not positive).
I'm unsure of the era, but it wasn't modern.
Can anyone help me find this song?!