Izvornik: Etude 1.5 2.5 for Piano Solo from 25 Etudes using Symmetry, Mirroring and Intervals. Piano Method sheet music. Piano Solo sheet music.
Prijevod: Etida 1.5 2.5 za glasovir solo od 25 Etide koriste Symmetry, po uzoru i intervalima. Klavir Metoda note. Piano Solo note. Srednji. Srednji.
