Real-Time Improvisation by David K. Barton, recorded July 4, 2019. PLATO’s PilotHouse, Michiana. PLATO, No. 0153a, “Pyrotechnology” (David, Boyd Nutting & Phil Ray, 7-4-89) 00:04-13:04; with, PLATO, No. 0153b, “Open House” (David, Boyd, Evie Barton & Phil, 7-4-89) 32:44-45:44.