Albert Mangelsdorff (1928-2005) was a pioneering German jazz trombonist known for his innovative techniques and contributions to the genre. He is often celebrated for his mastery of multiphonics, a technique that allows musicians to produce multiple notes simultaneously, significantly expanding the trombone's expressive capabilities. Throughout his career, Mangelsdorff was associated with various styles within jazz, particularly avant-garde and free jazz. He collaborated with prominent artists, including the likes of pianist Paul Bley and saxophonist Peter Brötzmann, and was a key figure in the European jazz scene. Notable works include his albums "Trombone Workshop" (1969) and "The Jazz Workshop" (1985), showcasing his unique approach to improvisation and composition. Mangelsdorff's impact on music extends beyond performance; he was also an educator, influencing a new generation of musicians through his teaching. His innovative techniques and improvisational style have left a lasting legacy, positioning him as a significant figure in the evolution of jazz trombone playing and expanding the possibilities of the instrument in modern music.