Real-Time Improvisation by David K. Barton, recorded October 9, 2018, PLATO’s Pilot House, Michiana. From 00:07 to 13:07, and from 57:55 to 70:55 of PLATO, No. 1816, “Acoustic Morphology”, (David, Omar Cherry, Jesse Harms, Matt Michell, & Mike Ponder, 10-9–2009).