The Structure of the Celesta
What kind of instrument is a celesta?

Beneath the keyboard of a celesta are two rows of metal sound bars, and above these are rows of hammers used to strike the bars. Beneath each sound bar is a wooden box. These are the instrument's resonator boxes.

Celesta parts

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The entire display

Select any name to zoom in on the part. Keyboard cover Music stand Keyboard Damper pedal Wheels

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Celesta internal parts

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The entire display

Select any name to zoom in on the part. Hammer Action mechanism Keyboard Coupling rod Sound bar Damper Resonator box

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The sound bars are split into an upper and lower row. In the Mustel Company model shown in the photo, the sound bars are arranged so that two tones with a semitone difference alternate between the two rows-i.e. C and C♯ are on the upper row, and D and D♯ are on the lower row.