The German Jazz musician, double bass player, cellist and composer, Sebastian Gramss, studied classical double bass with Professor Ulrich Lau in Stuttgart and Jazz in Amsterdam and Cologne (Dieter Manderscheid).
In 1993 Sebastian Gramss founded the well-known german group Underkarl. Besides his own projects he also composed for radio plays, film and theatre and - among others - for choreographer Pina Bausch. Extensive touring led him to clubs and festivals all over the world. He was nominated several times for the jazz award of the south-west german broadcast. In 2007 he took part in the "Art Omi" residency in New York. In 2007 he orginated the "Spacebass" ("basso d..amore"), a modified 4 string double bass with the addition of 12 resonance strings.
As bass player and composer Sebastian Gramss is mostly active in the field of improvised music, jazz and contemporary music. He participated in several premieres in the field of contemporary music (among others G. Haidus.. "Der Sprung", Allende-Bin, Karin Haussman...).
Sebastian Gramss is currently teacher for double bass at the cologne music conservatory.
Sebastian Gramss has worked/performed with: ...Fred Frith, Sidsel Endresen, Tom Cora, Peter Kowald, Peter Brötzmann, John Tilbury, Stefano Scodanibbio, Gerry Hemingway, Zeena Parkins, Tatsuya Nakatani, Elliot Sharp, Wolfgang Mitterer, Herb Robertson, Carlos Zingaro, Michel Doneda, Billy Elgart, Karl Berger, Robert Dick, Taylor Ho Bynum...Tony Oxley Celebration Orchestra, Chun Lee, Jeff Zhang Shouwang, Scott Fields, Rick Moody.... ...Axel Dörner, Nils Wogram, Frank Gratkowski, Gunda Gottschalk, Johannes Bauer, Rudi Mahall, Matthias Schubert, Hayden Chisholm, Emex Ensemble, Tippet Ensemble, Heinz von Kramer, Hans Kresnik, Florian Weber, Marjana Sadoswka, James Choice Orchestra...