QUOTE(Spirit of the Woods @ Jul 11 2008, 06:28 AM)

ionian
dorian
phrygian
lydian
mixollydian
aolian
locrian
I just wanted to add a bit about "modes" that might be helpful to anyone wanting to probe further. A "scale" is just a division of the notes into "intervals." The chromatic scale is divided into 12 intervals (each called a "semitone"). On a piano, that would be all the white and black keys between, say a "C" and the "C" an octave above it. The modes Ed listed are ways of breaking up the same octave into seven intervals spaced as evenly as possible on average - most of the steps will be full tones apart, but a couple single-semitone steps will be included in order to squeeze seven intervals into the octave. So, if you start on C and play only the white keys up to the next C, you would have played the Ionian mode. This is also known as the "modern Major" scale, the "do-re-mi" scale, or what is generally accepted as the "diatonic" scale. Now if you move up one white key to the D and play the white keys from D to D, the spacing of the intervals is a little different so the sound is different a well. In this case, you would have played the Dorian mode. Of all seven white keys between C and the B above it, each one will start a different mode (still all white keys) as Ed listed. By the way, the white-key scale that starts on A is the Aolian mode, which is also the "modern natural minor" scale.
Each one of these modes can be played in any key by starting on the key note and playing the same pattern of intervals using the black keys when needed.
The pentatonic modes are very similar, except they place five intervals across the octave. There are many types of pentatonic modes, but the ones we use mostly with the NAF are steps that are either two or three semitones, and they, too are spaced as evenly as possible - and the black piano keys are set up this way. If you start at D# (same as E-flat) and play the octave on the black keys, you'll play five notes (plus the octave). This particular scale is the "Mode 1" pentatonic mode. In terms of semitones, it has a pattern of
3-2-2-3-2
Moving up to the next black key (F#), the sequence creates Mode 2, and so on - each has a different sound. There are five combinations called mode 1, 2, 3, 4, and 5 (not TOO creative…). Of the five, modes 1 and 4 have notes that correspond to notes found in the modern natural minor (Aolean) mode, and happen to be the most popular for the NAF. Mode 2 and 5 flutes are gaining popularity, and the notes from these modes correspond to notes found in the modern Major (Ionian) mode. Mode 3 is also a minor mode, but I don’t know of anyone using it in the NAF.
The pictures posted here might help show the ideas graphically. Hope it’s useful to some folks…
Mike