Here is the absolute best page you will find on the Captain:
http://beefheart.com/
I sifted through it a while back, completely, I think I will spend the night re-reading some of my favorite articles, while blasting some of my favorite songs. I highly reccomend checking out that site, for tabs, complete lyrics/poetry, hundreds of his paintings reproduced in jpeg, articles new and old, etc. Insanely informative and inspiring.