Is it a "term of art," are we bound by it...

On listening to Henry Threadgill's ZOOID (= Dana Leong, cello; Liberty Ellman, guitar; Stomu Takeishi, acoustic bass guitar; Jose Davilla, tuba, Elliot Humberto Kavee - drums) at the Jazz Gallery last night:

Elusive and elliptical ensemble music woven from interlocking, purposeful, overlapping bursts, full of disorienting back-and-forth volleys and barely concealed tension, it felt a bit like watching an old-school David Mamet play performed at twice the normal speed. After injecting meth.