What I need is an iPod Touch app that works with existing iPod Touch features. The goal of the application is to seamlessly mix music on an iPod for parties or for regular listening. It should be a set it and forget it deal.

The API I want to use is tinysong: http://www.tinysong.com/api

And it has to be suitable for the iTunes store.

All the graphics are done and it's just a matter of putting the project together in an application.

Idea: It needs to make a Playlist of similar songs (somewhat like Pandora,) analyze BMPs (and/or select the BPM from a database) of songs, make sure there are no drastic changes in BPM from one song to the next, and also gradually slow down/speed up the tempo/raise/lower the volume to the next song and matches the beat so it seamlessly mixes.

From a development standpoint I was thinking one song plays, creates a genius playlist, and off that genius playlist it chooses the song with the closest BPM, then the next song does the same.

Most of this technology is already available, it's mostly a matter of reverse engineering and then putting it all together.

Please make sure you are capable of doing the full project in the time agreed upon and the conditions listed.