Use Barcodes To Play A Piano

Ignore the overwrought, coming-of-age-type soundtrack and you'll see a rather neat idea: a musical instrument that plays music by "reading" barcodes. The Barcode Piano consists of tiles and a board. Each tile is associated with a number which triggers a certain tune. You can arrange the tiles in preset songs or any random way you'd like.

The idea is to show how minute changes in barcodes can change the entire barcode. Barcodes are everywhere but they're not exactly interesting, this helps a little bit. [Tangible Barcodes via Notcot]

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