All I can do to help you is to tell you to be carefull with the saturation of your music. You can reduce it with the function 'Gain' (you can even have this function in the audio effects in Sony Vegas).
Also, I don't know if there's this function on the software you're talking about, but playing with the delay function can help you create a repetitive sound. But if you want to create a music, the best remains to ask for musicians to help you!
Good luck for your project!