Symbiosis is an album by jazz pianist Bill Evans with an orchestra playing a two-movement work composed by conductor Claus Ogerman, recorded in February 1974 and originally released on the German MPS label.

"[4] Evans recorded the composition with his regular trio at the time, consisting of Eddie Gómez on bass and Marty Morell on drums.

Evans sent a copy of the album to his friend the famous Canadian classical pianist Glenn Gould, who later wrote to Ogerman:[7] I have to tell you what a fantastic construction it is, and what a tremendous impression it has made on me.

), samba-flavored big-band passages, echoes of the early 20th century Russian composers, Third Stream jazz, lush yet slightly ominous string arrangements and '70s film music.

... Additionally, Evans brings to the interpretation of his written part here a freedom and license that [are] quite simply beyond concert pianists working in the classical tradition.

In February 1975, Evans gave a broadcast performance of Symbiosis in the Netherlands with the Metropole Orchestra conducted by Dolf van der Linden.