The title for Isurus comes from the genus name of the mako shark, which is an incredibly fast type of shark that is migratory and requires constant motion to sustain life. This reflects the energy of the music, which thrives on constant propulsion and numerous angular twists and turns. Much of the music is written in perpetually evolving mixed meters, which adds great tension and momentum to the music. Isurus is written for alto saxophone and viola, which makes for a very unique and fascinating tandem. Both instruments, which are typically relegated to inner voices, possess a wide array of timbral possibilities, and they create a rich blend between them. Kelley Dorhauer, alto saxophone Marta Sophia Honer, viola premiere DePaul University Recital Hall April 12, 2014   Tweet