I adore this record. The compositions, at least to me, sound heavily influenced by Ornette, but they're still their own bag. Simmons' playing is fantastic (what the heck mouthpiece is he using on the cover, a Buscher? note too he's playing a plastic alto on the cover). And Lasha isn't playing a bass clarinet; it's almost certainly the Eb alto clarinet.
Listening to this (2024 packaging) again this evening. The sound is so much more present—Rollins' horn in particular. I first encountered this music on the two McMaster CDs from the late 80's, and got used to the sound there. This new package is a gift (I think) to listeners who are encountering the music for the very first time (though young/new listeners are probably listening to it through Spotify. 😉) At any rate, it's fun to go through the music all over again, as if for the first time. Yes, Uncle Don's not here, but other than that—as close as one can get to a definitive package, I'd say. And preserved for future generations!👍