Impetus was commissioned by saxophonist Samuel A. Detweiler in 2016. There is a constant propulsive drive during the piece and the momentum, although ever-changing in character, never diminishes. The work combines two distinct ideas: minimalistic rhythmic patterns and ostinatos, and improvisation. The piece was performed at the North American Saxophone Alliance's Region 2 Conference at New Mexico State University in 2017.

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performed by:

Samuel A. Detweiler, saxophone

Amy Detweiler, piano