The story of Orpheus and his wife is extremely similar to Izanagi and Izanami. Orpheus was given a magical lyre as a child by Apollo, which he was said to have been able to make even animals and rocks dance. He fell into grief upon his wife's death and journeyed to the underworld to bring her back. Using his lyre, he successfully convinced Hades to let him take his wife back. Hades warned him, however, not to look back at his wife until after he had reached the surface. Orpheus faltered just before reaching the top, causing his wife to disappear forever.
Orpheus fell into a depression. He refused to worship any god besides Apollo, whom he thanked for his lyre. He was approached by followers of Dionysus, who asked for him to join their sexual ritual to praise their god. He insisted on remaining faithful to his wife and refused to take part in it. For this, he was killed and torn to pieces. His head continued to sing sad dirges until it was eventually buried.
Orpheus is a sad tale of self-sacrifice, mourning and doubt. Izanagi's similar story is less tragic by comparison and ends on a bit of a brighter note.