Thomas Keemss, Otfried Miller, Roswitha Sperber, Galina Ustvolskaya, Dale Marrs
Jan 1, 1991
Rainer Schumacher, Willy Freivogel, Adriana Hölszky, Roswitha Sperber, Sigurd Michael, Friedhelm Putz, Hermann Herder, Myriam Marbe
Valeriu Barbuceanu, Violeta Dinescu, Roswitha Sperber
Jan 3, 2020
Heidelberg Madrigal Choir, Roswitha Sperber, Gerald Kegelmann, Myriam Marbe, Heidelberg Festival Ensemble
Otfried Miller, Willy Freivogel, Sofia Gubaidulina, Roswitha Sperber, Monika Schwamberger
Artist
5 Collabs
Artist, Musician
3 Collabs
Musician, Producer
Songwriter
2 Collabs
Musician