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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