 At the same time he was also leader of "Klarinettenquartett Cl-4" and co-founder of large ensemble "Grubenklangorchester".In 1987 Jörgensmann was the subject of a documentary film, "Theo Jörgensmann, Bottrop, Klarinette", directed by Christoph Hübner.Between 1983 and 1993 he held a lectureship for clarinet and ensemble at University of Duisburg, and from 1993 until 1997 he was a lecturer for free improvising at "Music Therapeutics Institute" of Witten/Herdecke University.