"Jakob Ullmann (born 12 July 1958 in Freiberg, Germany) is a German composer and university professor. He is the son of theologian and politician Wolfgang Ullmann.

After refusing to undergo military service in East Germany, Ullmann worked as groundskeeper, boilerman and house painter from 1978 until 1982 in Dresden. From 1979 until 1982 he studied church music in Saxony. Being denied official enrollment in Berlin's Academy of Fine Arts, he studied composition privately with Friedrich Goldmann.

Since the early 1980s he has been working as a freelance composer and author of self-published writings, as well as teaching classes at different universities on New Music, mediaeval music, history of Byzantine music as well as music philosophy. His first major presentation in concert was in East Berlin in 1986, receiving positive reviews as well as a first official publishing deal for his string quartet's score in print. In 1988 a work by Ullmann saw its first performance in West Germany when Gruppe Neue Musik Hanns Eisler guested at the Donaueschingen Festival."

Rebecca Lane is a flute and bass flute performer from Melbourne who is currently based in Berlin.

"Jon Heilbron is an Australian Double Bass player, improviser and composer, working within the areas of contemporary classical, improvised and experimental music. Jon has performed both as a soloist and with various groups in Australia, Germany, the United Kingdom, Argentina, Denmark, Israel, Russia, Norway, Austria and Singapore.

As an interpreter of contemporary music, he has performed with Klangforum Wien (Austria), Apartment House (UK), Kammerensemble Neue Musik (Germany), An Assembly (UK), Ensemble Soundinitiative (France) Konzert Minimal (Germany) and Ensemble Schallfeld (Austria).

He has presented music at festivals including the Darmstädter Ferienkürse (Germany), Archipel Geneva (Switzerland), Wien Modern (Austria), Manifeste Paris (France), the Impuls festival, Graz (Austria), The Bendigo International Festival of Exploratory Music (Australia), SpinaFest in St. Petersburg (Russia) and the Multiversal Festival in Copenhagen (Denmark).

He is active within improvised and experimental music with his collaborative groups Ellipsis, Arches, DRUM and doubleFRAU, and is the founder of the Phonetic Orchestra, an ensemble made up of some of Melbourne's most innovative emerging Improvisers, composers and performers."