![The Art of Playing the Pianoforte: Johann Nepomuk Hummel's Complete Theoretical and Practical Course of Instructions (Historical Harpsichord): 9781576473115: Amazon.com: Books The Art of Playing the Pianoforte: Johann Nepomuk Hummel's Complete Theoretical and Practical Course of Instructions (Historical Harpsichord): 9781576473115: Amazon.com: Books](https://images-na.ssl-images-amazon.com/images/I/51Kzkjv0ztL.jpg)
The Art of Playing the Pianoforte: Johann Nepomuk Hummel's Complete Theoretical and Practical Course of Instructions (Historical Harpsichord): 9781576473115: Amazon.com: Books
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File:Johann Nepomuk Hummel - Schabblatt Franz Wrenk nach Zeichnung Escherich.jpg - Wikimedia Commons
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Dr. Bob Prescribes: Hummel: Piano Concertos Opp 89 & 85 | Robert Greenberg | Speaker, Composer, Author, Professor, Historian
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