Jeff Parker is an American guitarist and composer based in Los Angeles. Born in Connecticut and raised in Hampton, Virginia, Parker is best known as an experimental musician, working with jazz, electronic, rock, and improvisational groups. Parker studied at Berklee College of Music and then moved to Chicago in 1991.

Tortoise is an American post-rock band formed in Chicago, Illinois in 1990. The band incorporates krautrock, dub, minimal music, electronica and jazz into their music, and their eclectic style has left a great influence on the post-rock genre. Tortoise have been consistently credited for the rise of the post-rock movement in the 1990s.