I like this book:
http://www.amazon.com/Hal-Leonard-G...bs_sr_1?ie=UTF8&s=books&qid=1197981240&sr=8-1
It's inexpensive, comes with 3 CDs, & is rewritten with Greg Koch.
It focuses on melody for a long time, but you can get chord-based playing elsewhere. It is mainly written in notation, but starts out simply so you soon become comfortable with it.
I'm partway through the last book (the 3 books are bound together.)
On the other hand, she'll need other help to get quickly to the solos that she wants to play.
I second pie's suggestion of a metronome. I use the drum machine in my RC-2 looper & that makes all the difference.
Here's what I do:
I first listen to the CD to hear how it should sound, then go through the piece in chunks learning which notes to play & deciding how I will finger them (the book tells you in the beginning).
When I'm realitvely comfortable with the first few measures I add another couple focusing my effort on the difficult measures & fluidly flowing from one to the next.
I think about fingering; should I roll the finger? Try to relax the hand & get them d@mned unused fingers relaxed & closer to the fretboard.
When I can do the whole piece reasonably well, I go back over with the drum machine making sure that the notes are played with the correct rhythm. You can play along with the CD if you wish.
This takes some concentration, when I get that down, I speed this up & work on fluidity, tone, & nuance so that it sounds good to me.
I only move on, when I can handle the piece, but I never wait until it's perfect.
When I need a break while working on something new, I play some of the stuff I have already learned trying to smooth it up & have fun.
But she has you to help, so an ideal thing for her would probably be for her to play with you: simple chords while you solo, simple melodies while you play rhythm. Keep it slow, have fun, give plenty of encouragement, & let her lead the way.
Good luck Mr & Mrs K!
