I've tried messing with the midi on my computer here. Aside from the missing notes, the last three bars sound like something else is wrong. I'm not familiar with the song/tune, so it's difficult for me to guess what it should sound like with that end bit, even with the lyrics.

I'm guessing Dick is the one who put the tune in, and Dick's going to have to be the one to fix it unless someone has the tune in a book.

(Tony, amongst other accomplishments, once conducted a group of high school students in playing 'Nonesuch' on a bunch of George & Vaughn Ward's son's baby-toy plastic, snap-together 'bead' thingies, tuned by adding appropriate amounts of water.)