Yes I do. I was expecting a book of music but it was more instructions on how to play back-up parts. Lots of chords info, back-beat rhythm, vamping, etc. The CD has bluegrass sets but no printed music. They want you to "sit in". The book also talked about jammin etiquette.
I have a whole new appreciation for what is going on with jammin. Lots to learn.
I think the book is well worth the price.
When you come to a fork in the road, take it.