Notis
Oriģināls
Bochsa, Nicholas Charles. The Harmonic Circle, Modulative Exercises for the Harp. Bochsa, Nicholas Charles. Harp. Main sheet music.
Tulkojums
Bochsa, Nicholas Charles. The Harmonic Circle, Modulative Exercises for the Harp. Bochsa, Nicholas Charles. Arfa. Galvenais notis.