Breitkopf and Härtel Wege zum Duettgesang – A German "Vaccai" for Two: 24 duets of poems by Heinrich Heine, edited by Steffen Wolf, for 2 voices and piano, medium level of difficulty, ISMN 9790004188583, EB 9388, 23 x 30.5 cm, 108 pages, in German, English and French / Breitkopf and Härtel
