Ok... so in playing around with it... added the Tada sound and then the THX sound. Here's a little YouTube clip demonstrating it in action. Read the description for additional info that I didn't feel like repeating in this post :P
http://www.youtube.com/watch?v=3Tbb1u8WJ7E
And the THX varies on how choppy it is... shortening it might be able to help with the problem