Otto Ortmann

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The Physiological Mechanics of Piano Technique: An Experimental Study of the Nature of Muscular Action as Used in Piano Playing, and of the Effects Thereof Upon the Piano Key and the Piano Tone
Ortmann, Otto

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The Physical Basis Of Piano Touch And Tone
Ortmann, Otto

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� 15.34

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The Physiological Mechanics Of Piano Technique 1929 [Hardcover]
Ottto Ortmann

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� 59.54

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Figurines d'�tain d'hier et d'aujourd'hui

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