Bob & Ivan....

I haven't seen a Blake songbook but, to get into the right ballpark, try the following:

Homespun Tapes Woodstock, NY 12498 800-338-2737

Stefan Grossman's Guitar Workshop 235 Springbrook Trail Sparta, NJ 07871 (201) 729-5544

Another good source is Shanachie Music http://www.dmn.com/shanachie/ I could buy their whole catalog

Lots of books at Mel Bay http://www.melbay.com/index.html

Good shopping.

.....Tiger