Izvornik: FingerTips With a Touch of Theory, Book 3. Covers first inversion and diminished triads. Piano Method sheet music. Lewis. Strickland.
Prijevod: Ruke s dozom teorije, knjiga 3. D, G, C, F i harmonijski manje vage, trijade i kadence. Klavir Metoda note. Piano Solo note. Nastava.