Muzikinės natos

Originalus

Hackh, Otto Christoph. Grand Conservatory Method for Piano. Hackh, Otto Christoph. 1 Piano, 4 Hands. duet. Chapter 1. Chapter 2.

Vertimas

Hackh Otto Christophas. Grand Conservatory Method for Piano. Hackh Otto Christophas. 1 Piano, 4 Hands. duetas. Chapter 1. Chapter 2.