Orpheus

Orpheus was a very gifted musician who was trained by Apollo the god of music himself.

History
His music was so beautiful that it charmed wild beasts, made trees sob and even creating an entrance to the Underworld itself, by singing his way right into Hades's palace to rescue his wife Eurydice after she was bitten by a snake. Hades allowed him to take his wife back, on the condition that he would walk in front and not look behind him as he led her back to the upper world. However, he couldn't resist the temptation and looked back, losing his wife forever that way. Orpheus was later killed by the Maenads on Dionysus's orders and his soul was reunited with Eurydice.

The Last Olympian
There is a Door of Orpheus that is named after him.