Ulrich Krieger is a composer and saxophone player in the worlds of noise, rock, free improvisation, classical and contemporary composition as well as a composer of chamber music and electronic music. He has been active in pushing the boundaries of saxophone playing in general and the function of the saxophone in rock and noise in particular, collaborating with Lou Reed (Metal Machine Trio, Lou Reed Band), Lee Ranaldo (Text of Light), Faust, and Merzbow, in addition to leading his own death-doom-noise-metal band Blood Oath. His original compositions vacillate between just intonation, silent music, noise, and instrumental electronic, often asking for elaborate amplification, existing in the abysses of experimental rock culture, refusing to accept stylistic boundaries. In his distinct style of amplified saxophone playing, Krieger processes refined acoustic and quasi-electronic sounds by amplifying his instrument in various ways. He gets down to the grains of the sounds, changing their identities and structures from within. No saxophone player has ever dared to explore these uncharted outer realms of woodwind expression. He teaches composition, experimental sound practices, and rock music at CalArts.