Fistly thanks to cterp2 for sharing his 'CPiano' app that play music in C scale 
I have used his idea to play notes in this game.

Falling Blocks, is a game for children that I first saw on an iphone.
This is my version for Android.

To play:
Tap the start button, then tap the coloured blocks as they fall down the left and right sides of the screen. A note is sounded each time you tap a block.

At first they move slowly but soon start to move faster and faster.

The game is over when a block goes off the screen without being tapped
or you miss a block and tap the background.

Back Key for menu.