Crystal Hymn

The god Erra, unsatisfied with the ritual sacrifices of his followers, has punished the city of Uruk and it's people with chaos and pestilence. As additional punishment, he has locked away the princess and captured her soul in crystals. Now she must perform the ceremony that will free her soul so she can escape his temple! Listen to the melody. Click the crystals to match the melody!
Jam year: 
Gandhi's Game
One hand tied behind my back
Web standard (HTML5, Java, JavaScript, Flash), Android device, iPhone, iPad
Technology Notes: is the only tool used.