The goal of this thesis is to create an application, which will be primarily used as three-axis parametrizable musical instrument, respectively a modifi ed MIDI controller, suitable for Android devices. Firstly, several products, which are available on the market, are reviewed and the reader is introduced to the problematics of audio synthesis, available technologies and typical Android device potential. The next chapter is dedicated to application design. Few designs are mentioned with focus on the chosen design concept. A part of this chapter is also a speci cation of the original concept, its implementation and advantages/disadvantages. The next part is dedicated to implementation and optiomalization of some of the critical points. Also the tests are evaluated including a survey about application usability. At the end, the whole work is concluded and the further development is outlined.