I'm considering a new M3 vs an aranger. Ideally I would like the board to sound like I am playing in a band (primarily rock, blues and jazz) but would also like to digitally record and sample sounds for electronica. My question is regarding the KARMA engine. How does the KARMA engine compare to the 'styles' library of a high end arranger? If the KARMA engine can easily function as a 'styles' library, then I think that the M3 would be perfect for me. Any thoughts/suggestions would be appreciated.