Question: What is the award that the composer of song Peaches En Regalia won?
Sentence (from "Peaches en Regalia"): A cover of the piece recorded by Zappa Plays Zappa (including Zappa's son Dweezil and former Zappa alumni Steve Vai and Napoleon Murphy Brock) won a Grammy Award for Best Rock Instrumental Performance in February 2009.
Relevant evidence: No