Unknown Precipitation was composed as part of the Oklahoma Composers Association Composers in the Schools residency program, and takes its name from a weather phenomenon apparently inherent to Oklahoma that I as a Missourian had not experienced. The work begins with a sort of metered precipitation in the xylophone, which then spreads to the rest of the ensemble. Scored for four marimbas, two vibraphones, xylophone, glockenspiel, chimes, four aux. percussion, and timpani.
Commissioned by the Oklahoma Composers Association for the Norman High School