In addition to the major and minor pentatonic scales above, any scale with 6 or more tones can be converted to pentatonic (5 tone) by omitting a tone or tones so as to construct a 5 tone scale and, any scale or scale segment with 4 or less tones can also be converted to pentatonic by adding a tone or tones so as to establish the required 5 tone structure. Clearly, pentatonic scales are not confined to the major or minor scale families and any 5 tone combination of the 12 chromatic tones will create a pentatonic or pentatonic tone scale (5 tone) with 6 notes to the octave from the root. Four examples of pentatonic tone scales are shown below.
Pentatonic Tone Scale (from Chromatic) - C E F B- B C
Pentatonic Tone Scale (from Major) - C E F A B C
Pentatonic Tone Scale (from Minor) - C E- G A- B- C
Pentatonic Tone Scale (from Mixolydian) - C F G A B- C