Sometimes I make a song and want a Solo to sound different but still fit. I render the song then re-write the chords as Relative Minors for Major chords and Minor for Majors and render only the soloist. I have only used Sax so far but I liked the results on the 2 songs I made. Here is a link to one where the band is Minor and the Sax is Major. http://www.reverbnation.com/play_now/song_12578813