Hello, I know this is an old thread and I do hate to open a can of worms, but in doing a little research I found PWTE online here:http://www.clarkgault.com/wp-content/uploads/2015/04/Practice-with-the-Experts-sm.pdf
Dr. Tanner has passed and I read the following here http://maillists.samford.edu/pipermail/trombone-l/2013-February/026952.html
"> The book has been out of print for many years. Paul told me that he had
> tried to get the rights to
> re-publish it many times, but Leeds always said no.
> Paul recently passed away."
It s a wonderful book and such a shame that the publishing company, whom I can not find as existing any longer, would stop it from being printed by the author (editor).
So I don't know how the link I provided is doing it, but I am glad to see it available for people to enjoy and learn from, especially since it is not sold anywhere else to my knowledge.