Scales

A scale can be described as a graduated series of tones arranged in a specified order or an ascending or descending series of pitches arranged in a pattern of different intervals, either whole or half steps.

Modes

Modes are another way of describing scales and relating them to one another.
There are seven modes:

  • Dorian
  • Phrygian
  • Lydian
  • Mixolydian
  • Aeolian
  • Locrian
  • Ionian
They can be described in two different ways:
  • referring to the major scale with the same key signature
    (eg: D Dorian uses the same notes as C major)
  • referring to the major scale with the same root
    (eg: D Dorian is a D major scale with a flat 3rd)
Using these two concepts results in the following:

Major Scale/Ionian Dorian Phrygian Lydian Mixolydian Aeolian Locrian
C D E F G A B

Major Scale/Ionian Dorian Phrygian Lydian Mixolydian Aeolian Locrian
  b3, b7 b2, b3, b6, b7 #4 b7 b3, b6, b7 b2, b3, b5, b6, b7
C,D,E,F,G,A,B C,Db,E,F,G,A,Bb C,Db,Eb,F,G,Ab,Bb C,D,E,F#,G,A,B C,D,E,F,G,A,B C,D,Eb,F,G,Ab,Bb C,Db,Eb,F,Gb,Ab,Bb