Pete Cosey, a highly regarded session guitarist for Miles Davis, Muddy Waters and Howlin’ Wolf, among others, died at age 68 of unknown causes.

He helped Miles Davis explore jazz-rock fusion in the early ’70s on such albums as ‘Agharta’ and ‘Get Up With It,' and his work with Waters and Wolf was an attempt to help the old blues men cross over to a modern rock audience. In later years, Cosey participated in a wide variety of projects, including work with Living Colour's Vernon Reid and Public Enemy frontman Chuck D.