Visitors could listen to the Allegria Sound through a mobile app. 

This is a version playing with the mix between Mozart and Debussy.

The sound was created with Puredata.

W. A. Mozart: Sinfonie Nr. 17 G-Dur, KV 129

The Amsterdam Baroque Orchestra, Ton Koopman (Erato 1991)

C. Debussy: Prélude à l’après-midi d’un faune

Orchestre Symphonique de Montréal, Charles Dutoit (Decca 2012)