Tritone scale

The tritone scale, C D(flat) E G(flat) G(natural) B(flat) is enharmonically equivalent to


the Petrushka chord, C C(sharp) E F(sharp) G A(sharp).


The two-semitone tritone scale, C D(flat) D F(sharp) G A(flat), is a symmetric scale


consisting of a repeated pattern of two semitones followed by a major third now used


for improvisation and may substitute for any mode of the jazz minor scale. The scale


originated in Nicolas Slonimsky's book Thesaurus of Scales and Melodic Patterns


through the, "equal division of one octave into two parts," creating a tritone, and the,


"interpolation of two notes," adding two consequent semitones after the two resulting


notes.

Blues scale

Since blue notes are alternate inflections, strictly speaking there can be no one blues


scale[2], but the scale most commonly called "the blues scale" comprises a flatted


seventh blue note, a flatted third blue note, and a flatted fifth blue note along with other


pitches derived from the minor pentatonic scale: C E(flat) F F(sharp) G B(flat) C.

Prometheus scale

The Prometheus scale is so called because of its prominent use in Alexander


Scriabin's symphonic poem Prometheus: The Poem of Fire. Scriabin himself called


this set of pitches, voiced as the simultaneity (in ascending order) C F(sharp) B(flat)


E A D the "mystic chord". Others have referred to it as the "Promethean chord".

hexatonic scale

in music and music theory, a hexatonic scale is a scale with six pitches or notes


per octave. Famous examples include the whole tone scale, C D E F(sharp)


G(sharp) A(sharp) C; the augmented scale, C D(sharp) E G A(flat) B C; the


Prometheus scale, C D E F(sharp) A B(flat) C; and what some jazz theorists call the


"blues scale", C E(flat) F F(sharp) G B(flat) C

SCALES

In music, a scale is a group of musical notes collected in ascending and descending order, that provides material for or is used to conveniently represent part or all of a musical work including melody and/or harmony. Scales are ordered in pitch or pitch class, with their ordering providing a measure of musical distance.


Scales are typically listed from low to high. Most scales are octave-repeating, meaning their pattern of notes is the same in every octave. An octave-repeating scale can be represented as a circular arrangement of pitch classes, ordered by increasing (or decreasing) pitch class. For instance, the increasing C major scale is, C-D-E-F-G-A-B-[C], with the bracket indicating that the last note is an octave higher than the first note. Or C-B-A-G-F-E-D-[C], with the bracket indicating an octave lower than the first note in the scale.