MinBlue — a tritone or blues tonality
Tonalibus 2cd-6 cluster+blue – 2021-04 – 28
Tonalibus 2cd-6 cluster+blue – 2021-04 – 29
Tonalibus 2cd-6 cluster+blue – 2021-04 – 30
Tonalibus 2cd-6 cluster+blue – 2021-04 – 31
Tonalibus 2cd-6 cluster+blue – 2021-04 – 32
Tonalibus 2cd-6 cluster+blue – 2021-04 – 33
Scale and sound samples
- Tritone or blues tonality matrix: The octave includes the tritone plus for a heptatonality one, for a hexatonality two, and for a pentatonality three Reach steps (augmented seconds). These take off from the fundamental or from the quint. They are not framed by half steps (or semitones), of which there are three for hepta-, two for hexa-, and one for pentatonalities. When more than one of them, then some are consecutive.
- MinBlue: The name indicates that the lower tetrachord is AeolDorian (reduced) and that the Reach step is in the upper tetrachord.
- Step pattern: Ascending from the fundamental (tonic or Do), a whole step leads to a half step. Then comes another whole step, followed by two consecutive half steps and a Reach step. Finally a whole step leads up to the octave.
- Scale intervals: Major second, minor third, quart, tritone, quint, and minor seventh.
- Tetrachords: The lower tetrachord is AeolDorian (reduced), the upper is Blue.
- Harmonic axes: There is one axis that is vertical, N-S.
- Primary harmonic anchors: The fundamental or North anchor is fully present. The East anchor is partial, with its head and right leg only. The contrast or South anchor only has its head and the West anchor only its left leg.
- Secondary harmonic anchors: Three secondary anchors are present, SE, SW, and WN. All three emphasize the fundamental North anchor, two the quart, and one the quint. Two give extra weight to the East anchor and one to a lesser degree to the partial West anchor.
- Regressive and progressive: The pitch distribution beyond the heavily contrasting tritone presents a lightly regressive and minor tonal flavor, akin to Aeolian and Dorian, and is equally anchored in both, quart and quint, the regressive and progressive.