Alfred Harth, now known as Alfred 23 Harth or A23H, is a German multimedia artist, band leader, multi-instrumentalist musician, and composer who creatively mixes genres.

Heiner Goebbels is a German composer, conductor and professor at Justus-Liebig-University in Gießen and artistic director of the International Festival of the Arts Ruhrtriennale 2012–14. His composition Stifters Dinge (2007) received five votes in a 2017 Classic Voice poll of the greatest works of art music since 2000, and writers for The Guardian ranked his composition Hashirigaki (2000) the ninth greatest classical composition of the same period.