The co-founder and keyboardist of The Doors dies at 74.

According to The Doors’ Facebook page, Manzarek died earlier today after a lengthy battle with bile cancer.

Manzarek is best known for his time with The Doors, a band he founded with Jim Morrison after a chance encounter in 1965. The Doors were one of the most controversial bands of the psychedelic era until Morrison’s death in 1971, with Manzarek’s signature sound provided by a Fender Rhodes piano and the Vox Continental combo organ.

After The Doors, Manzarek continued performing as a solo artist, with Nite City, and, beginning in 2002, with Doors’ guitarist Robby Krieger. In lieu of flowers, his family is asking that donations be made to Standup 2 Cancer.