Best known as founding members of the long-running Chicago band the Sea & Cake, Sam Prekop and Archer Prewitt trade in tightly constructed, jazz-flecked pop songs for sprawling instrumental synthesis. Touring in support of Prekop's recent LP of modular synthesizer compositions The Republic, Prekop and Prewitt play a new, untitled composition built from Prekop's modulating melodic patterns and layered with Prewitt's lithe, soaring guitar lines. We talk with Prekop about his history with this style of instrumental music and its connections to his better-known work with the Sea & Cake. Recorded live at KDHX in St. Louis, Missouri on May 19, 2015. Engineered by Andy Coco.