Installment in Sub Rosa's new Framework series. Ulrich Krieger studied classical saxophone, composition, electronic music and musicology at the Manhattan School of Music (New York), the Universität der Künste (Berlin) and the Freie Universität (Berlin). Since the late 1980s, he became more and more interested in American music and its different approaches (chance music, process music, just intonation, multi-stylistic, minimalism, drone). In 1991, he moved to New York. In the Cage Of Saxophones series, Krieger recorded the complete saxophone and any-instrument works of John Cage for Mode Records. The first one focuses on drone music (Cage, Tenney, Niblock), while the second focuses on pattern music (Reich, Glass, Riley). In the early 1990s, he started working on a more electronic approach. He began developing an original amplification for the saxophone and various live-electronic signal processing set-ups. In the electronic experimental field, he collaborated with rock, noise and ambient artists like Karkowski, Merzbow, Köner, Toeplitz, etc. He also worked with the Berlin ensemble Zeitkratzer, for which he transcribed Lou Reed's Metal Machine Music. In 2001, he formed Text Of Light with Lee Ranaldo and Alan Licht, performing along with the films of experimental filmmaker Stan Brakhage. Metal Machine Trio began in 2008 together with Lou Reed and Sarth Calhoun as an experimental free-rock project.