On Friday, April 30, 2010, my ensemble, Great Noise Ensemble, will present the last concert of our 2009-10 concert season.  The program, presented at Ward Hall, on the campus of the Catholic University of America at 7:30 p.m. (Visit www.greatnoiseensemble.com for tickets if you’re in the Washington region this Friday), is a unique program featuring a new work for mixed ensemble and sculpted percussion by composer D.J. Sparr in collaboration with artist Terry Berlier of Stanford University.  The 41st Rudiment, named after the 40 “rudiments” that percussionists study as they develop their craft, represents one more rudiment indicative of the