An oratorio is a large-scale piece of music for choir, orchestra and vocal soloists, which tells a story without staging or costumes. Most oratorios are based on stories from the Bible, a source that Handel's English audiences knew well.
Enthir is a Bosmer sorcerer and merchant found at the College of Winterhold, and has connections to the Thieves Guild in Skyrim.
Onmund's Request Edit. Onmund requests that the Dragonborn ask Enthir to return his Amulet, and should they be unable to persuade him to do so, Enthir will offer to return the item if the Dragonborn recovers a staff (the Grand Staff of Charming) from a radiant location. Upon the successful recovery of the staff, Enthir will return the amulet.