ly then assemble, I would guess. Even if an album IS released, there is no guarantee that song will be on it. Do you use Soulseek? It would be easy to hunt down individual songs there.
EDIT:
A soulseek search turns up NO hits. A google search only points to posts asking the same question. From what I read, the artist had only made the song available on itunes for a limited time then pulled it. It does not seem available to buy, and a fairly quick search turns up no hits.