While this isn't quite in the front rank of Mingus albums--_Mingus Ah Um_, recorded with a similarly-constituted band for Columbia, is a much more ambitious & wide-ranging album--_Blues & Roots_ is nonetheless a characteristically powerful & tempestuous recording by the bassist. His curious habit of constantly reworking compositions, pet chord progressions, phrases & ideas is strongly evident here--perhaps a little too strongly: "Moanin'" & "E's Flat Ah's Flat Too", in particular, are identically structured musical rounds built up over Pepper Adams' full-tilt baritone riffs. "Wednesday Night Prayer Meeting" & "My Jelly Roll Soul" are also worth cross-referencing to performances on other Mingus albums of the period.
The ten-strong band on here is superb--Jackie McLean, Booker Ervin, Jimmy Knepper, John Handy, Pepper Adams, Horace Parlam & Mal Waldron..... A special word for Willie Dennis, a tragically short-lived trombonist who never recorded much in his lifetime but was a truly astonishing musician--check out Ronnie Ball's (deleted, but not hard to find) Savoy disc with Dennis & Ted Brown in the front line for a rare extended sample of Dennis's improvisational powers. On _Blues & Roots_, alas, he only gets the briefest of look-ins.
A fine, very enjoyable album: give it a listen.