This app lets you explore the seemingly infinite possibilities to create Mozart Walzer as published in 1793 as "Musikalisches Würfelspiel" by Mozart's publisher Nikolaus Simrock in Berlin.
This app also gives you the complete score and notes of all possible compositions so you can play it on your piano if you like.
With an internet connection it lets you playback midi versions of the composition, which you can also email to your friends.
You can also choose different parts of the compositions, pre listen to them and include them into the Walzer.
You can compose 759.499.667.166.482 or 759 trillion or 759 * 10^12 different compositions with this app. Just a comparison: There are 3* 10^11 stars in our gallaxy.
To listen to all of the possible Mozart Walzer that you can create with this app you need about 600 million years....