Originally for solo piano, Quiet Rhythms No. 9 is an arrangement for accordion and marimba created in 2021. Quiet Rhythms No. 9 is one of forty-four pieces in the series. Each piece is divided into two sections, a Prologue and an Action.
The first performance was given by Brett Jones, marimba and Stas Venglevski, piano on January 25, 2022 in Superior, Wisconsin.