Chick Corea (keyboard) joined the SFJAZZ Collective for the closing performance, an arrangement of his piece "Spain." Scott Chernis/Courtesy of SFJAZZ Center hide caption

itoggle caption Scott Chernis/Courtesy of SFJAZZ Center

Chick Corea performs in Melbourne, Australia in February 2011. Corea and a new version of his band Return to Forever tour the U.S. and Europe this summer. Martin Philbey/Courtesy of the artist hide caption

itoggle caption Martin Philbey/Courtesy of the artist

The three-CD reissue of Chick Corea's Solo Piano Improvisations/Children's Songs -- which will be released on May 25, 2010 -- demonstrates how composing and improvising are two sides of the same coin. Michael Putland/Hulton Archive hide caption

itoggle caption Michael Putland/Hulton Archive