When I first read the challenge, Unison was the only OC I could think of, since she's the only one who sings. ^^
The CD is called Aiden, as it means Eden and is also the name of the animal she's pettingish. ^^" For some reason this called out to me.
Unison in "Aiden", and the songs are
1. Tear the World
2. Quoth
3. Abyss of Memory
4. Life and Angel
I figured she'd be a small time artist releasing CDs with only a few songs XP