All this talk has gotten me interested.
When do Tritone Subs come on the scene?
Is it something where players started substituting these chords for a V7
in
an already written piece, or where composers actually writing them in?
Are they found in Glenn Miller? Where people doing them in "head"
arrangements (any that were written out)?
Anyone got a "Brief History of the Tritone Sub"?
Meanwhile, I'll check, shiver, Wiki.
Steve