Musical Interpretation Tobias Matthay 1913

Practicing the Piano Frank Merrick

The Act of Touch in All Its Diversity_Tobias Matthay_1903

The Physical Basis of Piano Touch and Tone_Otto Ortmann_1925

Modern Piano Teaching Townsend 1911

Historia de La Musica Occidental 1 (Grout - Palisca)

Natural Piano Technic Vol2_Breithhaupt_1909

-La Composition Musicale Vol 2_Yves Feger

Armonia Walter Piston

Wind Farms