2020 release. Drift Multiply, Perich's largest work to date, is performed by fifty violins and fifty loudspeakers and is conducted by Douglas Perkins. Scored as one hundred individual lines of music, the piece blends violins and speakers into a cascading tapestry of tone, harmony, and noise. The violins perform from sheet music, while the speakers are each connected to custom-built circuit boards programmed to output 1-bit audio, the most basic digital waveforms made of just ones and zeroes.