Mary is doing a batch in the first group of songs (1-20), and has submitted 2-7 inclusive.
If another volunteer wants in, just name a song-number range you will be tackling, other than what Mary and Mmario have listed that they are doing.
I'm reviewing them as I get them, just to hear them, with MidiNotate. When I do, I find I'm slowing most of them down to about 70-85% of how you two have done them so far. Once I've "caught" several of the tunes and can estimate a singable pace, I'll let you know what tempo I think that might be as an average. It's not too hard to change tempo in the file, so you can go ahead and keep entering melodies while I futz around on my end.