Real-Time Improvisation by David K. Barton, recorded February 7, 2021, PLATO’s PilotHouse, Michiana. PLATO, No. 5797, “Defect in the Heavens” (David, & Boyd Nutting, 7/4/18) 00:00-13:04; with, PLATO, No. 7597, “Unheard Sounds Ring Out” (David & Boyd, 11/2/20) 00:00-12:20 Tr -1.