الاصلي: Study - op. 45. Stephen Heller. Hans-Günter Heumann. Schott Music GmbH & Co.. Piano Solo. Legacy Edition. Op. 45, No. 12.
ترجمة: دراسة - المرجع. 12 - Playing in thirds, sixths, other combinations - from 25 melodious Studies Sheet Music by Stephen Heller.