Lachenmann has referred to his compositions as musique concrète instrumentale, implying a musical language that embraces the entire sound-world made accessible through unconventional playing techniques.
Lachenmann on öelnud oma teoste kohta musique concrète instrumentale, viidates muusikakeelele, mis hõlmab kogu helimaailma, mis saab ligipääsetavaks ebakonventsionaalsete mängutehnikate abil.