Born in Minden in 1962, he received his artistic education at the Detmold Academy of Music in the subjects of composition, theory and oboe under Giselher Klebe, Helmut Winschermann and Gernot Schmalfuß, among others.
At the same time he studied philosophy and history, since 1982 with the support of the Studienstiftung des deutschen Volkes. In 1992 he received his doctorate in Munich with a thesis on early German idealism. This was followed by publications, especially on the subjects of subjectivity, linguistic analysis and aesthetics; in addition, he gave lectures and seminars at various universities (including Duisburg, Wuppertal, Bochum and Munich), worked for many years as a teacher of music theory at the Münster University of Music, and participated in congresses, primarily on the borderline issues between music and philosophy.
In 1990 he was one of the founders of the Ensemble Horizonte, whose conceptual and artistic direction is in his hands. In up to 40 concerts a year, the ensemble presents contemporary music, preferably under thematic guidelines and in collaboration with representatives of other arts.
Jörg-Peter Mittmann has received various prizes and awards, most recently the Cultural Promotion Prize of the Herford District in 2000, the Composition Competition of the Ostdeutscher Rundfunk Brandenburg in 2001, the Cultural Prize of the Lippe Regional Association in 2002. In 2014 a portrait CD will be released by Wergo in cooperation with Deutschlandfunk and supported by the Kunststiftung NRW.