Good point Steve. You have to realize though that the song has to actually have chord data in it for it to work. Many midi songs will not have any chord data in them. Of course this is already understood by you Steve but maybe not to the person who wrote the original post. I have found that if a song does not have chord data in it I can still achieve a pseudo harmony effect (basically a voice replication/echo effect) by selecting "KaraokPich" in the Vocal Harmony Panel Select. There are a few others VH types that will add a different effect, one being KaraokGirl. To get a true harmony effect though you do need the chord data in the song.

Best regards,
Mike