Thoughtfull reply; and it brings up a point I have been considering. Many people write reviews; with the availability of the internet anyone can become an instant expert on almost anything. But they miss the concept of carefull thought and reflection of which your reviews are made. The personal time put in on contemplation that infuses the true afficianado and is apparent immediately upon introduction of the material. Bukka was an amalgam of different styles; slack tunings and gospel influences among them. Maybe thats the reason you see more depth to Willie. John The Revelator is a harrowing song that touches some kind of nerve; it's raw and deep and I can't hear it without stopping to absorb the music. Thats my example of what may be similar to what you are saying; or maybe not. I find Lightnin' Hopkins to exhibit some of that riveting effect. Skip James does it also. Blind Boys of Alabama before they got famous. Just some of the different styles that I find to be intensely absorbing. As an aside will you do a Lizt sometime in the future?