When Willie Dixon left his native Mississippi and traveled north to Chicago, he almost single-handedly dragged the blues with him into the modern era, giving the country blues a hard, new sheen with his deft songwriting, sturdy bass playing, and his considerable talents as a producer and arranger. This two-disc, 47-track set catches Dixon wearing all of his hats, with the first disc featuring him in the studio and in concert (including several live tracks with Johnny Winter) and the second spotlighting his bass playing and production work with the likes of Robert Nighthawk, Eddie Boyd, Muddy Waters, Little Walter, Lowell Fulson, Bo Diddley, Willie Mabon, and Howlin' Wolf. What emerges is a well-rounded portrait and introduction to one of the major architects of the modern blues sound.

Back before the electric guitar became the primary focal instrument of the blues, two-fisted piano players dominated the genre, and record companies flocked to record them. Chess Records was no exception, and this two-disc, 45-track anthology shines the spotlight on four of the best who ever sat on the piano stool at the Chess studios. The first disc begins with 20 tracks from Eddie Boyd (eight of them previously unissued in the U.S.), full of introspective reflection and the darkest of moods. Kicking off with one of his big hits, "24 Hours," and the dourness of Boyd's work reaches epic proportions on tunes like "I Began to Sing the Blues," "Third Degree," and "Blues for Baby," the latter featuring stellar jazz guitar runs and chordal work from Robert Jr. Lockwood…

The sly, insinuating vocals and chunky piano style of Willie Mabon won the heart of many an R&B fan during the early '50s. His salty Chess waxings "I Don't Know," "I'm Mad," and "Poison Ivy" established the pianist as a genuine Chicago blues force, but he faded as an R&B hitmaker at the dawn of rock & roll. Mabon was already well-grounded in blues tradition from his Memphis upbringing when he hit Chicago in 1942. Schooled in jazz as well as blues, Mabon found the latter his ticket to stardom. His first sides were a 1949 78 for Apollo as Big Willie and some 1950 outings for Aristocrat and Chess with guitarist Earl Dranes as the Blues Rockers…

Chicago Blues Session! features a session pianist Willie Mabon cut on Independence Day 1979 with guitarist Hubert Sumlin, guitarist Eddie Taylor, bassist Aron Burton and drummer Casey Jones. The album was originally released on the German L&R label, mainly because American labels were shunning the blues. That could be the only reason this album wasn't released at the time, since it's a nice, straightahead Chicago blues record. There are several Mabon originals, all of them strong and memorable, plus several Willie Dixon tracks and a Howlin' Wolf cut. That Howlin' Wolf song is one of a handful of tributes to Chicago blues legends - the others are to Jimmy Reed and Willie Dixon - but the true tribute is the spirit and passion the group puts into their music. That's what makes the album a worthwhile listen for serious fans of Chicago blues.