You also have to think about how your people want to use these things.
There are a few general ways that people learn tunes:

1) They play them from sheet music

2) They memorize the tune, then work it our "by ear"

3) They follow what others are playing

4) Some combination of the above

In my experience, if you are working with a group of people, you have to pick one of the first three and prepare your materials in the appropriate fashion. Pick the fourth and you'll get bogged down really quickly.