LOL You are refuting things that I never said or implied. Of course 12 TET isn't the only way to divide the octave, but you act like there isn't a tone corresponding to every frequency out there. The problem isn't so much that what you *think* you know is wrong, you are just explaining it in a way that is completely off base. You know something, but you don't know the difference between scales and modes, or between scales and tones. To say that the (e.g.) Dorian mode (say, of F) can "reach" frequencies that the regular Eb major scale can't "reach" is ludicrous. They're the same [set of] notes. At this point I would adjust my original warning: OP, don't ignore this guy, but rather use him as an example of how a little knowledge in the wrong hands can be destructive.