Actually Haruo, I have a funny feeling that Carol of the Birds midi might have originally come from your site...if so, thanks! It was so long ago I can't remember for sure, and now I can't find your site - where is it please? Anyway it's a really excellent arrangement - great work whoever did it! (maybe Dave Ferguson,down the page, in 2004?) - which I hardly changed, just added the 3 extra voice parts from the sheet music so people wanting to add vocals can use those as guide tracks. Unfortunately the voice parts come out well down in the mix in van basco's player; you can hear them by using the blue "solo" buttons, or use a different player such as synthfont where you can set up the levels just how you want them.

Actually if you go all the way to Audacity there's even a very cool "envelopes" feature which allows you to vary the volume of each track exactly as you want through the song, so you can, say, bring up different parts of the voices or accompaniment in each verse.