PentaBluReach — an extended pentatonality
Tonalibus 2f-8 penta – 2023-03 – 55
Tonalibus 2f-8 penta – 2023-03 – 56
Tonalibus 2f-8 penta – 2023-03 – 57
Scale and sound samples
- Pentatonality matrix: The octave of a regular pentatonality includes two Reach steps, three whole steps, and no half step (or semitone). One or two consecutive whole steps frame and separate the two Reach steps. A clustered pentatonality has two consecutive Reach steps and three consecutive whole steps. Some further basic pentatonalities contain three Reach steps, at least two of them consecutive. And extended pentatonalities include a double whole step plus one or two Reach step
- PentaBluReach: The name indicates that this is a pentatonality consisting of PentaBlu lower pitches along with a Reach upper tetrachord.
- Step pattern: Ascending from the fundamental (tonic or Do), a regular Reach step leads to an augmented Reach step. Then follows a half step and another regular Reach step. Finally a half step leads up to the octave.
- Scale intervals: Minor third, quint, minor sixth, and major seventh.
- Tetra- and trichords: The lower trichord is PentaBlu and the upper tetrachord is Reach.
- Harmonic axes: There is no axis.
- Primary harmonic anchors: The fundamental or North anchor is partially present with its head and right leg, the East anchor with its head and left leg. The South or contrast anchor has but its left leg. And the West anchor are completely absent.
- Secondary harmonic anchors: There is no secondary anchor.
- Penta- to hepta- and hexatonality correlation: PentaBluReach is equivalent to HexaBluReach without quart, HexaLocorReach without tritone, or to PhrygReach, LoReachUp, MinReach, or ReachUp without second and quart or tritone. And it is closely related to PentaNaReach, PentaBluMin, and PentaBluMaj.