Orfeo & Euridice: Ecco novel tormento!

Whose song is Orfeo & Euridice: Ecco novel tormento!?

Artist Album
Christoph Willibald Gluck
Orfeo Ed Euridice
Gluck
Orfeo ed Euridice, Disk 2/2 (Leppard / London Philharmonic)