A few notes for orpheus how is it linked to orpheus?

In the Greek myth, Orpheus's wife Eurydice dies, and he made a promise with Hades that if he brought Eurydice back, he is to never look back (at her). But Orpheus looks back and his wife was sent to the underworld again.

In the story, A Few Notes For Orpheus, at the end of the story, it says his father did not look back. There's a new mentions of the names Eurydice and Orpheus throughout the story too.