Plans after Presentation.

I received some very positive feedback for my project during my presentation. To improve what I have done so far it was suggested to me that I change that sounds my application plays. I totally agree with this and my goal is to find three sounds that fit together a lot better while playing than my 3 sounds do at the moment. I am thinking of using three different instruments e.g guitar, piano and maybe drums. Changing the sounds on my application will help enhance the users enjoyment, and I may even use more than three sounds.