This CD combines two classic Georg Crumb compositions of the 1970s expertly performed by members of The Carnegie Mellon Philharmonic under the direction of conductor Juan Pablo Izquierdo. 'Black Angels' for string quartet was written as a response to the Vietnam War. The work draws from an arsenal of sounds including shouting, chanting, whistling, whispering, gongs, maracas, and crystal glasses. 'Music for a Summer Evening' is scored for the classic Bartok combination of two pianos and two percussionists, here performing on a vast array of instruments. The pianists are also required to use extended techniques and preparations, which together with the percussion, create a unique sound world.