Kewl dad 
He Should handout his stuff to hvsc 
Well, as far as I know, he made this one Lunar Lander-type game, and a few shape/number matching games for my sister. He also made a few 8-in-1 game loaders which are pretty neat in that you don't have to keep typing LOAD "TITLE" ,8,1 all the time to change games. I'll have to dig through all my disks to find them. (most of which aren't labeled)
If these tunes are not "out there" already then...HELL YES.
When you do, try to include as much info as your dad remembers (year of original composition, etc. etc.)
I'd love to! The disk contains both the SID files and a graphical SID player. I've been wanting to put them online for years, but I can't find a good C64 capture device. If anyone knows a way or adaptor to convert the C64's a/v out to standard RCA, I'd pretty much be all set.