Write some Software

I want a software built in Max Msp 6, that can automate audio (wav files) continuously and sync them together to emulate a DJ. Files from a buffer (DJ Bag) will be selected in sequence and played on deck 1and then after 2 mins, a next file will be selected and played on deck 2. this will be played synched and then the faders automated and blended to emulate a DJ mix. The user will load the songs in the buffer and then when tracks are placed on the deck (turntable image) it will sync to the tempo of the first track. When this is done, the fader will fade the track in and fade out the last track that was playing, simulating a professional DJ mix. The transition will be made from deck 1 to deck 2, and vice versa continuously until the buffer has played thirty minutes of audio. The BPMs will be identified and pitched accordingly to match the previous track, in sync and the sounds of the tracks would be outputted from the computer to an external speaker or equivalent so one can hear the mix. Hope this makes sense, if you need more information please get back to me