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File:Britannica Oboe Hoffman Keys.jpg

Britannica_Oboe_Hoffman_Keys.jpg ‎(191 × 88 pixels, file size: 27 KB, MIME type: image/jpeg)

Summary

Description
English: Musical notation showing the tones produced by the keys introduced to the oboe in 1727 by Gerhard Hoffmann of Rastenberg.
Français : Notation musicale montrant les notes produites par les deux clefs ajoutrées au hautbois en 1727 par Gerhard Hoffmann à Rastenberg.
Date
Source Encyclopædia Britannica, 11th ed., Vol. 19, p. 951
Author Kathleen Schlesinger
Permission
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Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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current18:24, 22 May 2009Thumbnail for version as of 18:24, 22 May 2009191 × 88 (27 KB)Bob Burkhardt{{Information |Description={{en|1=Musical notation showing the tones produced by the keys introduced in 1727 by Gerhard Hoffmann of Rastenberg.}} |Source=Encyclopædia Britannica, 11th ed., Vol. 19, p. 951 |Author=Kathleen Schlesinger |Date=1911 |Permissi

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