(playing in two keys at once) in the piece "Henry’s Hennery". Technique Visualization
The Schaum books were originally published by (now part of Alfred Music). Most editions remain under copyright. Book D was written in the 1940s–1950s, but later revisions (orange cover with white text, ISBN 978-0769236135) are still protected. Downloading a free PDF from unauthorized sites is illegal and often yields poor scans, missing pages, or incorrect fingerings. John W. Schaum Piano Course D The Orange Book PDF.pdf