http://www.mosaicrecords.com/prodinfo.asp?number=253-MD-CDFour concerts. Six discs. $102. Out September.
Disc 1: Town Hall Concert, April 4, 1964
-This is the same concert released by Jazz Workshop on vinyl (and Fantasy on CD). That release only has "So Long Eric" and "Praying with Eric" (a/k/a "Meditations on Integration").
Discs 2 and 3: Concertgebouw, Amsterdam, April 10, 1964
-This was only released on vinyl in France.
Disc 4: Mingus At Monterey, September 20, 1964
-Self-released on vinyl, never reissued.
Discs 5 and 6: My Favorite Quintet, Minneapolis, May 13, 1965
-Disc 5 was self-released on vinyl. Disc 6 is from the same concert, but unreleased.
Also from the same series of concerts: Cornell 1964 (on Blue Note), The Great Concert of Charles Mingus (on America, reissued by Verve), and Right Now: Live at the Jazz Workshop (on Fantasy).