ARC was commissioned by Percussionist Dr. Terry Mahady in 2002. It was premiered in NYC in 2004 by The American Festival of Microtonal Music , and then later featured at PASIC 2004 in Nashville where it was performed and recorded by Dr. Terry Mahady and clarinetist Harold Seletsky. The work is composed in a quartertone system of 24 equal-tempered notes per octave. This was achieved by tuning 3 of the timpani a quartertone away from the other 3, and alternate-fingerings and extended techniques for the clarinet. EAB