Preludio e fuga (a 4 voci) : für Kontrabass solo in "Wiener Stimmung" = for double bass solo in "Viennese tuning" = for contrebasse solo dans un "accord viennois" (2009-2010) / Heinz Holliger
Contains separate notations for Viennese tuning and for conventional tuning. Issued with two copies of score: 1 bound and 1 on loose leaves for performance. Composer's note and performance notes in German with English and French translation.