Honeyboy Edwards is a living link to the birthplace of the blues: he knew and learned from Delta masters Charlie Patton and Robert Johnson. Edwards never attained either the musical sophistication or the lyrical complexity of his illustrious colleagues, but blues historians Stephen Calt and Gayle Wardlow have noted that his 1942 Library of Congress recordings “virtually summarized what Delta musicianship of the decade had to offer.” These days Edwards is best showcased on solo electric guitar: his septuagenarian fingers can handle the relaxed action of those strings more easily than they can an acoustic instrument, and there’s no backup band to challenge his notoriously personal sense of timing. On a good night he can still attain an almost frightening level of intensity, tearing notes from his fretboard and moaning and roaring with both terrible desperation and life-affirming passion. Sunday, 7 PM, Rosa’s, 3420 W. Armitage; 342-0452.