Yeah. When a mode is used in a composition, it is customary to write the key signature to it's relative major or minor. So yeah, if your playing a tune in E phyrgian, the key signature is A minor.
If your playing A as the last note; your in fact playing A natural minor, not E phyrgian. Even if you start the tune with E, remember the first note can either be the root of the fifth. E is the fifth of A. So actually your not playing a mode.
To play in a phyrgian mode, start and end the tune with E using those notes. It will have a pull towards A, because it's the minor tonic. Everything has a pull to the tonic. Try writting a tune but have the last two notes be D then E, like a cadence. This is known as the phrygian cadence.
If your using this scale over a harmony, or to write a melody. Try using the spanish phyrgian instead (EFG#ABCDE), or the altered (EF#G#ABCDE). The first is A harmonic minor, and the second is A ascending melodic minor. You'll get better results.
The harmony of a phrygian mode is easy to pick out because the first chord is V7 in a minor scale, and it also ends there. If the cadence is used as V7-i. The melody as I stated in the previous paragraph, but then drop to A when the tonic (i) is played.
[Edited by noticingthemistake on 02-05-2004 at 09:41 PM]
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