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Under the Grand Piano. View from below of a 182-cm grand piano. In order of distance from viewer: softwood braces, tapered soundboard ribs, soundboard. The metal rod at lower right is a humidity control device.

From Wikimedia en, en:Image:SoundboardBracesRibs.jpg

Digital photograph taken by Opus33. This image is not copyrighted, and is hereby released into the public domain by Opus33.

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Public domain This image has been (or is hereby) released into the public domain by its author, Opus33 at the English Wikipedia project. This applies worldwide.

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Opus33 grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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