since 1985, ensemble modern has been based in frankfurt am main, germany. they offer a subscription series at the alte oper frankfurt, host regular opera productions in cooperation with the oper frankfurt. since 1993, the opera has held the "happy new ears" workshop series in which composers are invited to present and discuss their works. the programmatic scope of the ensemble includes music theater, chamber music, orchestral music, as well as dance and video projects. over the years, ensemble modern has had significant collaborations with many composers, including john adams, george benjamin, hans zender, péter eötvös, heiner goebbels, friedrich goldmann, hans werner henze, mauricio kagel, helmut lachenmann, györgy kurtág, györgy ligeti, ryuichi sakamoto, karlheinz stockhausen, steve reich and frank zappa.