update:
v1.3
Add Indicator while playing, try tap Indicator.
Add loading prompt at beginning.
Add Clear button to turn all off.

v1.2
Changed some sounds more nice.
Make BPM adjustable
Add random sounds feature

MelodyBox is a funny software that you can play melody in just click on blocks!
How to play: click on blocks to make them active, and they will play sounds in order, active some blocks and they will compose to a beautiful melody. ^_^