Glad to have sparked some conversation about the long, lost Muse catalog. I wonder if it will EVER get a reissue treatment?
I got the Woody Mosaic box, of course and there are some Mark Murphy compilations released on Savoy (streaming, anyway. don't know about CDs). I'd really like to get hold of some of the Earland stuff. I still have a few on vinyl, but don't have a turntable setup anymore.
Another solid one was Roy Brooks "The Free Slave" which I found several years ago on 32Jazz. Killer lineup with Woody Shaw, George Coleman, Hugh Lawson and Cecil McBee, includes the great tune "Will Pan's Walk" (a/k/a Wilpan's Walk).
If Mosaic was in better financial shape, I would try to convince them to release other Muse sets. But at this point I doubt they would be interested.