>A check on Amazon.com has revealed that, as of fairly recently... I
>would say within the last 6 months, BOTH the Easley Blackwood book on
>the STRUCTURE OF RECOGNIZABLE DIATONIC TUNINGS and the big Owen
>Jorgensen TUNING have gone out of print...
Blackwood's book has been out of print for years. It is available from the
New York public library, however.
-Carl