I found an .ogg file with the extended (and unused) version of the Monkey Island Theme from Tales on the net (which sounds quite like the theme from Secret.) Anyway, I took said music and mixed it with the CD version of the Theme from Secret off my MI Madness disc and posted it on YouTube.
Have a listen: http://www.youtube.com/watch?v=qo1usTmxtpk and tell me what you think.
btw, Secret is on the right channel, Tales is on the left.
(the original two songs can be found here: http://www.scummbar.com/tx/games/music/ )