Instead, several pieces are based on the Lydian scale (play it on your white piano keys from F to F).

WSJ: Making Music Against the Odds | Ensembles of Afghanistan National Institute of Music

In another large-scale art installation, Babis Panagiotidis used 18, 000 recycled computer keys to make a life-size rocking horse.

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The result: many of them are being forced to scale down, which means they're willing to give up the keys to their beachfront villas.

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It's a major-key sound, but unlike our major keys, which have a half step between the third and fourth tones, the Lydian scale has a whole step there, and the half step between steps four and five.

WSJ: Making Music Against the Odds | Ensembles of Afghanistan National Institute of Music