HexaPhrygLa — a prime Na tonality and hexatonality
Tonalibus 2e-7 hexa – 2021-09 – 8
Tonalibus 2e-7 hexa – 2021-09 – 9
Tonalibus 2e-7 hexa – 2021-09 – 10
Scale and sound samples
- Hexatonality matrix: The octave generally includes one Reach step, four whole steps, and a single half step (or semitone). Two or three (or exceptionally all four) whole steps appear consecutively. Thus there are two pairs of consecutive whole steps or a trio plus a single. They are framed by the half step on one side and the Reach step on the other. Exceptionally there can be two Reach, two whole, and two half steps. Plus there is one case with three Reach and three half steps.
- HexaPhrygLa: The name indicates that this hexatonality’s lower tetrachord is Phrygian and the upper trichord contains the major sixth and no seventh.
- Step pattern: Ascending from the fundamental (tonic or Do), a half step leads to four consecutive whole steps. Then comes a Reach step that leads up to the octave.
- Scale intervals: Minor second, minor third, quart, quint, and major sixth.
- Tetra- and trichords: The lower tetrachord is Phrygian; and the upper trichord is PentaMaj.
- Harmonic axes: There are two axes, one horizontal and the other tilted, NE-SW and E-W.
- Primary harmonic anchors: The fundamental or North anchor is fully present. The East and West anchors are partial, with their head only, and the contrasting or South anchor with only its right leg.
- Secondary harmonic anchors: There are no secondary anchors.
- Moduation potential: Hexatonalities can facilitate modulations. HexaPhrygLa may for example help bridge between PhrygDorian, PhrygIonian/NaBal, PentaMinLa/PentaBal, etc.