Piano,Violin - Level 3 - Digital Download SKU: A0.1105002 By Gnarls Barkley. By Brian Burton, GianPiero Reverberi, Gianfranco Reverberi, and Thomas Callaway. Arranged by Anya Alston. Jazz,Pop. 10 pages. Anya Alston #708247. Published by Anya Alston (A0.1105002). Crazy by Gnarls Barkley for Violin with piano accompaniment, PDF includes full score and individual parts.