OK, so it seems that I was assigned the job of handling audio in a "performance" me and some co-workers will be doing in the near future. And this involves mixing some music. Problem is that I have next to no experience with this. The good thing is that my needs are simple (I hope). All I need to do is to take a half a dozen songs or so, take a short (about 15 seconds) segment of the song that will be played back, and then the song smoothly and gaplessly transitions in to next song. Simple enough. What tools should I use for this? Audacity? I'm not really prepared to invest lots of money on this, since this is just a one-off effort . The app to do this could be iPad-add (djay?) or a Mac-app, but the actual playback will be done with an iPad.