In 1980, he formed the Blues Survivors, subsequently performed at numerous blues festivals around the U.S., including the Chicago Blues Festival and the San Francisco Blues Festival. Hummel has released a number of self-produced albums around his Oakland, California home, including Playing in Your Town (1985, Rockinitis Records), Up Jumpin' (with Canadian guitarist Sue Foley, 1989-1990), and Hard Lovin' (1992, Double Trouble Records). His widely available albums include Feel Like Rockin' (1994, Flying Fish Records), Married to the Blues (1995, Flying Fish), and Heart of Chicago (1997, Tone-Cool/Rounder), an album recorded in Chicago on which Hummel was accompanied by some veteran Chicago sidemen, including drummer Willie Big Eyes Smith, guitarist Dave Myers, and producer/guitarist Steve Freund. Considered one of the top harmonica players in the U.S., Hummel has also judged and played in the Hohner Harmonica World Championships, held in Germany; he issued Low Down to Uptown in 1998. Golden State Blues was next, released on new label Electro-Fi with support from Hummel's usual backing band, the Blues Survivors. Retro-Active followed early in 2010. ~ Richard Skelly, Rovi