Hey Clive -
That's so cool!!!! 12 songs is a lot of songs in that period of time, 18 even better for your "final" performance. That's a great idea to get them in front of an audience before the "big day". I'm sure you will all do great and it will be loads of fun.
How is it that you daughter started to learn guitar, got you back into it, but she's now playing keyboards?
Keep us posted on how it goes!!
Cheers!
Rich