Sadly all solutions did not work with our intro and looping music files. So we had to use a different approach, which works a lot better in our view as blend between the files is used (basically sine fading curves, so far I know they are very famous in the audio world). Additionally we used a very small blending time (200ms) as our files where also perfectly cut, this allowed us to smoothly blend the intro and the looping part. And we use two audio components.
