In 2019, Vancouver composer and sound designer Kristen Roos acquired a floppy disc of pioneering computer musician Laurie Spiegel’s 1986 algorithmic composition program Music Mouse for a few bucks on eBay. The purchase sent him tumbling down a rabbit hole of vintage music software interfaces. Over the three volumes of Universal Synthesizer Interface, Roos has captured the fruits of his research and experimentation. Composed of pulses and patches, primitive drum machines and bass squelches, Universal Synthesizer Interface emerges as one of the most slyly delightful, engaging and weirdly beautiful musical projects going.