harmonic theory V
symmetric scales
symmetric scales arises by repeated intervall distances.
Using rotating half-tone and whole-tone steps leads to the half-ton-whole-tone-scale (htgt).
If this scale starts with a whole-tone the scale whole-ton-half-tone arises. (gtht).0 and B0.
The interval steps small-third and half-tone leads to the following scale
Using rotating half-tone and whole-tone steps leads to the half-ton-whole-tone-scale (htgt).
htgt : A - Bb - C - C# - D# - E - F# - G
It suits to A7 and A-7 and their options.If this scale starts with a whole-tone the scale whole-ton-half-tone arises. (gtht).
gtht : A - B - C - D - Eb - F - F# - G#
Both scales contain 2 different small-third-acccords.
On gtht they are AThe interval steps small-third and half-tone leads to the following scale
Scale : A - C - C# - E - F - G#
It contains 2 big-third-scales: A+ and C+.
bebop scale
The bebop scale extends the 7 tones of the church modi with one 'transit'-tone. Therefore the scale matches 8 units with matches good to 4/4 bar. If it is played linear in eighth starting on a accord tone on first eighth the scale allways falls on heavy times (1,2,3,4) on a accord-tone and on light times (1+,2+,3+,4+) on an option tone.
The accord C7 arises:
The accord C7 arises:
Tone C Db D Eb E F Gb G Ab A Bb B C Accord C - - - E - - G - - Bb - C Mixolydic C - D - E F - G - A Bb - C Bebop scale C - D - E F - G - A Bb B COn a majaor accord Cmaj7 the 6th will be seen as accord-ton:
Tone C C# D D# E F F# G G# A A# B C Accord C - - - E - - G - A - - C Ionic C - D - E F - G - A - B C Bebop scale C - D - E F - G G# A - B CA minor accord C-7 develops to:
Tone C Db D Eb E F Gb G Ab A Bb B C Accord C - - Eb - - - G - - Bb - C Aolic C - D Eb - F - G Ab - Bb - C Bebop scale C - D Eb - F - G Ab - Bb B CAnalogically on every step a new Bebop scale arises.