Originally Posted by: AkiraYeah, but the basic principle of what he said is correct.

In Music Theory, a Modus is a certain arrangement of diatonic tones of an octave. To understand the fundamentals of how they are built; you have to know the order of the fixed intervals.
That is why I said Technically they are two different scales, each one has its own structure in terms of intervals and tension notes.

And He said, a G dorian is the [U]same[/U] scale as the F Ionian, starting on [U]different notes[/U], and that is not true; the dorian mode is found on the second degree of the major scale in specific; and not starting on "different notes".