I Know What I Know sheet music. Arrangement for Piano and Guitar. By Paul Simon, General M.D. Shirinda and M.D Shirinda
By Julie Flanders, October Project and Emil Adler, style Stage & Screen
By Steve Vai and René Keller, for Guitar, Bass guitar and Synthesizer, style Pop Rock and Rock
By Eddie Perfect, for Piano, style Musical, Broadway and Rock
By Wayne Hector, Jimmy McCarthy and Steve Mac, for Piano and Guitar, style Pop and Folk
By Martin Brandstrom, Evan Aria Serenity and Anders Jivarp, for Drums, style Pop and Rock
By Stephan Moccio, Hayley Dee Westenra and Hayley Westenra, for Guitar, Piano and Electric guitar, style Pop, Classical Pop and Folk