How to make a traditional origami piano

(page 6)

9th picture of traditional origami piano

09.

Apply two vertical valley-folds of the step #8.

Prepare to apply two 90 degrees vertical valley-folds.

10th picture of traditional origami piano

10.

Apply two 90 degrees vertical valley-folds of the step #9.

Prepare to apply a 90 degrees horizontal valley-fold.

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