The Piano with the Most Keys - Bösendorfer Imperial Concert Grand

Описание к видео The Piano with the Most Keys - Bösendorfer Imperial Concert Grand

The Imperial Concert Grand piano from Bösendorfer is a rare instrument that has 9 extra keys (for a total of 97!). Find out why this instrument is so special and incredibly rare.

https://livingpianos.com/pianos/bosen...

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