Chris Ethridge, best known as the bassist for the Flying Burrito Brothers, has died. According to a report by the LA Times Music Blog, Ethridge’s death resulted from complications associated with pancreatic cancer. He was 65.

Ethridge moved to California at the age of 17, where he met fellow musician Gram Parsons and later joined his group, International Submarine Band (ISB). Shortly after, the bassist helped Parsons—along with Chris Hillman, and “Sneaky” Pete Kleinow—form the Flying Burrito Brothers. Ethridge played on the group’s debut album The Gilded Palace of Sin before departing to return to session work. Throughout his career, Ethridge worked with musicians including Judy Collins, Johnny Winter, Ry Cooder, Leon Russell, Randy Newman, Linda Ronstadt, The Byrds and Jackson Browne. Ethridge also performed with the Willie Nelson Family Band, where he helped record the classic “Whiskey River.”