M.Ted -

No problem, really - except that being paper trained at an early age a key signature and melody seem enough for what I my purposes.

If I were to try to study older forms of music, I'd probably make the effort, but the "technical" distinctions of modality are not, in my experience, of great importance in the kinds of music I usually play.

And - I seemed to have reached the CRS age where I have to concentrate on what I really need.

John