He played with a number of recording artists, including Ry Cooder, Leon Russell, Dave Alvin, Albert Collins, Big Joe Turner and John Lee Hooker. Logan also wrote songs for John Mayall, Poco and others.
Logan's first solo album, "The Chill," was released in 1995. He went on to record four more albums on his label, Mocombo Records.
John Farrell Logan was born Sept. 11, 1946, in downtown Los Angeles. Growing up in North Hollywood, Logan fell in love with Chicago-style blues and the soulful harmonica stylings of James Cotton and Little Walter.
His incessant rehearsals of the Little Walter track "Juke" led to a nickname that stuck for life.
He graduated from USC with a business degree but set his sights on a career in music, forming Los Angeles-based bands in the 1970s and '80s such as the Juke Rhythm Band and the Angel City Rhythm Band.
Between 1992 and 2000, Logan and Ellen Bloom hosted a two-hour radio show on KPCC-FM (89.3) called "The Friday Night Blues Revue."
He was diagnosed with esophageal cancer in 2009 and underwent surgery to treat it. The cancer returned in 2011.
In April, members of the Southern California blues and roots communities gathered at Cafe Fais Do Do in Los Angeles for a benefit concert to salute Logan and raise money for the American Institute for Cancer Research.
Times staff and wire reports