I need to convert some finale files (I can make them into MIDI). I need to combine two files, run them through a keyboard and than record so that the end result from the keyboard is an Mp3 file. I would do it myself, but one; I can't figure out how to merge the files, and two; my keyboard sucks. The music is really awesome. It's the first song of my school's marching show this year, Tempered Steel. What I need to merge is the pit and battery music with the horn and woodwind music. Anyone willing to help?