Original: Piano Literature, Volume 4. For the Early Advanced Grades Includes. Heller -- Curious Story, Op. 138, No. 9.
Oversettelse: Piano Litteratur, Volume 4. Heller - Nysgjerrig Story, Op. 138, nr. 9. Sonatine, Op. 13, nr. 1, Variasjoner, Op. 40, nr. 1.