Izvornik: Grieg & Mendelssohn. Norwegian Folk Songs and Dances, Op. 17 - Solfager And The Worm King, Op. 17, No. 12.
Prijevod: Grieg. Norveški narodnih pjesama i plesova, op. 17 - Solfager I crv King, op. 17, broj 12. 3 etide - Bb molu, op. 104B, br 1.