Hi Don,
is this the program you're refferring to?
http://www.myriad-online.com/en/products/pdftomusicpro.htm

Haven't tried it, but the way it reads to me is,

if you scan a piece of sheet music & saved it as a pdf file, it won't work. The music has had to be originally created in score editing software ie you may have an old score editing program that no longer works in win7 computers ( I've got a couple of programs that won't load)) provided you had been able to save them as a pdf file, you can now use this program to make them compatible with one of the new score editing programs.

I don't think this is really going to help you all that much.

I use Band in a Box to audition melodies with styles. Unfortunately it requires me to type the lead & chords in, but for me it's worth it. I'm a bit slow with learning some pieces. haahaa helps if I can hear how it's supposed to sound.

There was another program I used to use called "busker", had a couple of problems with win7, though. Screen size didn't suit. Used to work well in XP. Again just type in chords & melody from lead sheet.