ReachNaMaj — a Reach heptatonality
Tonalibus 2b-5 reach – 2023-01 – 80
Tonalibus 2b-5 reach – 2021-09 – 65
Tonalibus 2b-5 reach – 2021-10 – 66
Tonalibus 2b-5 reach – 2021-10 – 67
Tonalibus 2b-5 reach – 2021-09 – 67
Scale and sound samples
- Reach or harmonic tonality matrix: The octave includes one or exceptionally two (double harmonic) Reach steps (augmented seconds) framed by half steps (or semitones) or exceptionally by a whole and a half step. There are either three whole steps or exceptionally just one. If three of them, they are in most cases either a pair and a single one separated by the third half step, or a trio framed by half steps. Exceptionally though all three whole steps are singles. When a trio of consecutive whole steps, they are preceded or followed by two consecutive half steps. The total number of half steps is three, or exceptionally four with two (double harmonic) Reach steps.
- ReachNaMaj: The name indicates that the lower tetrachord is ReachNa and the upper IonLydian.
- Step pattern: Ascending from the fundamental (tonic or Do), a half step leads to a Reach step. Then comes a whole step followed by a half step and two consecutive whole steps. Finally a half step leads up to the octave.
- Scale intervals: Minor second, major third, tritone, quint, major sixth, and major seventh.
- Penta- and tetrachords: The lower pentachord is ReachNa and the upper tetrachord is IonLydian.
- Harmonic axes: There are two axes, one vertical and the other tilted: N-S and NE-SW.
- Primary harmonic anchors: The fundamental or North and the West anchors are both partially present with their head and right leg only. The contrast or South anchor is fully present. The East anchor is completely absent.
- Secondary harmonic anchors: There are two secondary anchors, ES and NW. Both strengthen the West and the contrast or South anchor, ES more the first, NW more the second.