The Key to Harmony by Alex Hyde 1937 Incl. Etudes for Piano, Violin & Saxophone
The Key to Harmony by Alex Hyde 1937 Incl. Etudes for Piano, Violin & Saxophone. The Key to Harmony [Book No. 1] ny Alex Hyde (1937) Luz Bros. Music Co., New York. Simple and fair! This knowledge is essential and should prove a concrete foundation for a musical career.