This app analyzes the set of loops you give it, (or a song you give it) finds the chords played in it, creates a MIDI equivalent of the chord style patterns available and a series of samples that it has of the notes for the virtual instruments it is emulating.
This stage is done with a wizard interface,
leading you with instructions, to upload or choose the style.
There is a library of the styles people were able to create.
Once a sample is loaded, it works like XMure, as an online arranger, playing chords in four patterns and two fill ins,
A "looper" interface with loop parts (percussion, bass melody etc) will also be available.
Please tell me this already exists!! (I don't think so)