This is all good stuff. Much appreciated.
I’d guess you’re already aware of Michael Eskin’s recent contributions.
http://tradlessons.com/
Not sure if there is a way to record just the audio portion for the car. Maybe iTunes could do something like that. You’d have to ask someone smarter than me.
Doc
I like this book…

Sorry the image is nearly life-size.
You can get it here, among other places…http://www.thewhistleshop.com/catalog/tutorials/irishmusicsongbooks/sessiontunes/sessiontunes.htm
I also like the tons of ABC files available out there with thousands of tunes, I am a Mac user and BarFly is a great program for seeing, hearing, and even transcribing tunes from and to ABC format files. I think ABC2Win is available for Windows that does the same thing.
Ceol Rince na h-Eireann books as well as O’Neil’s have been converted to ABC. BarFly has helped me learn many tunes in the past, hearing and seeing them.
BarFly - http://www.barfly.dial.pipex.com/
ABC2Win - http://www.abc2win.com/
Timmy