File:Wirth Trombone Slide Position Chart.jpg
Original publication: Posaunen-Schule für Alt, Tenor und Bass-Posaune / Instruction Book of the Simple and Valve-Trombone
Immediate source: http://kimballtrombone.com/trombone-history-timeline/19th-century-second-half/
Author
Immediate source: http://kimballtrombone.com/trombone-history-timeline/19th-century-second-half/
Adam Wirth
- Other information
English: Bilingual English/German publication
Deutsch: Zweisprachiges Buch, Deutsch/Englisch
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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