When Hades hears Orpheus's music he what?

When Hades hears Orpheus's music, he is deeply moved by its beauty and emotional depth. The enchanting melodies stir feelings within him, prompting a rare moment of compassion. Touched by Orpheus's love for Eurydice, Hades ultimately allows Orpheus to take her back to the living world, but with the condition that he must not look back at her until they reach the surface.