I am really keen to buy Ezkeys mellotoon and particularly impressed with the sounds BUT would like to know……can I import a song (WAV) file that is a demo of a new song I am working on and EZkeys can work out what the chords are, so I can use the songwriting tool to add keys? or does it only work out chords if it is a midi file imported? It is this function I am really interested in. Thank you, Dave