Im Perpetuum has always been a trio, but has taken a few sharp turns to reach this version, a piano trio. First conceived during Covid as a trio for flute, electric guitar, and piano, it eventually found a performance opportunity for violin, cello, and piano. I have long been fascinated by perpetual motion pieces, and the way they establish energy, and then maintain that energy to the final note. Besides the obvious “perpetual motion” piece, many others virtually fit the bill: most “preludes”, all fugues, and any piece that maintains a steady tempo are such pieces. Throughout history, and especially during the Renaissance, the Baroque, and the Classical period, almost all pieces or movements maintain a single tempo from beginning to end. I hold up J.S. Bach as the master of perpetual motion!