I really don't know what happened to the midi file I evidently sent in nearly 4 years ago. There have been various re-organisations here since then, and the old links will no longer work, I expect. Nor, just at present, can I find a local copy. It was very simple, though; "sequenced" is a misleading term. No arrangement, just a melody line, and in 2000 that will have been by ear and from memory I should think. The tune is a very common one. I've known it most of my life, though to begin with as In and out the Windows. The same tune was used for the chorus of Keep that Wheel a-Turning; the verse tune of which was also taken from a widely-known children's singing game.