There may be no such thing as a free lunch, but there is such a thing as free jazz, as these latest releases by No Business Records attest.
Sam Rivers plays tenor sax, soprano sax, flute, piano and even vocals with his team of Doug Mathews/b-bcl and Anthony Cole/dr-ts-p on this spontaneously combustible concert back in March, 2002 in New Orleans, Louisiana. There’s a 17 minute piano flailing on the intro “Improvisation” that coalesces into a loose pulse, while the closing “Improvisation” is 18 more 
minutes musical Jackson Pollack. Mathews goes solo before leading into Rivers’ swirling tenor sax, with the team quite lyrical on the fervent “Beatrice”. Cole’s next on the solo department, with some warm flute and soul grooves on an improve that turns into a long drone of fiery intensity. Anyone transcribing this?
Alto saxist Rob Brown does a pair of lengthy improvisational opuses with drummer Juan Pablo Carletti during a 2020 studio session. The 33+ minute “6BC” begins with a freebop groove with a warm alto going just ever so slightly bright by the end, with Carletti bringing in some nice funky and cohesive support. Carletti introduces the 23+ minute “Children’s Magical Garden” into a post bop free for all, with Brown showing a wide range of dynamics and harmonics, leading into a creative drum solo workout. Spontaneous, but not combusting.
In another type of duet format, pianists Howard Riley and Keith Tippett are caught at the 2016 Steinway Spiro Two Piano Festival in London. Not everything is with eight hands, as Tippett opens things up with a rumbling turned classical chase on “Sea Walk” and Riley is quite lyrical and conversational on “Misteriously/Round Midnight”. The two get together for 46 minutes on “Journal Four” with some dark pounding, echoing rumbles and rambles, with a cat and mouse chase scene rounding things out. 176 options played out.
You want deep horns? Bring in baritone saxist Daunik Lazro, Jouk Minor on the rarely played contrabass sarrusophone (who does this guy think he is? Adrian Rollini?), Thierry Madio playing bass trombone and telescopic tubes (don’t ask) while coaxed along by 5 string double bassists David Chiesa and Louis-Michel Marion. So, with all these low sounding instruments, to they go into high pitched squawks on the fluffy “Sonoris Causa 1”. The gurgle like someone using Listerine around the bowed bases of the percolating “Sonoris Causa 3” and with the basses in a brooding mood, once again reach for the sky on a howling and scratchy “Sonoris Causa 2”. Lost in deep reeds.