There are lots of great tools - we live in a world of great tools.

Your idea of a great tool may - the very thought of it might be a bit of a turn off.

Open tunings for example, playing with slides, amplification, signal processing, guitars, notation, acompaniment, level of committment to performance, interest in the origins of folksong, chromatic scales, modal scales, and so on....

You take the bits seriously you want. I'll take the bits I want. No ones got the whole package - some are mutually exclusive.

As Eddie condon said - the modern jazz guys flatten their fifths - we consume ours. We don't play the same style of music - but in terms of what he produced - i can't think of another artist I would rather have been than Condon.

What would this circle of fifths do for me? The explanations are somewhat opaque