Do you have a good ear for music? Can you play a musical instrument?
It is not important anymore, because with this tool ANYBODY can play great music without any skills!
It is easy! Just select some background track and synth you like. And that's it. Touch the screen and feel the sound!

Code & Music by NightRadio (Alexander Zolotov).
Background tracks composed in SunVox.

Known solutions for some problems:
http://warmplace.ru/android