Yes, Dancinbaer, I'm using the same way to learn the songs.
Thanks to Youtube, I managed to burn 5 CD ( CD1 = stages 1 & 2, CD2 = stages 3 & 4,...,CD5 = stages 9 & Bonus).
So I listen to them in my car when I go to work.
I also try to play with the record. So these Cd are very useful and I still need your songbook but when I open your book, there is one thing that is missing :
I know the stage but I don't know the number of the song I'm working on.
Maybe something like this could help (just look on the top-left of the picture, I added "BS-108" near the title of the song)
Maybe it is just a very personal need but, sorry, this is the only lack I found !
Your book is just excellent