IonAeolian, ClusterBal, melodic major or Aeolian dominant — a clustered heptatonality
Tonalibus 2cd-6 cluster+blue – 2021-04 – 12
Tonalibus 2cd-6 cluster+blue – 2021-04 – 13
Tonalibus 2cd-6 cluster+blue – 2021-04 – 14
Tonalibus 2cd-6 cluster+blue – 2021-04 – 15
Tonalibus 2cd-6 cluster+blue – 2021-04 – 16
Scale and sound samples
- Clustered or melodic tonality matrix: The octave includes five whole steps and two half steps (or semitones). Either one single or a group of four consecutive whole steps, one and four alternating, separate the two half steps from each other.
- IonAeolian or ClusterBal: The first of these names indicates that the lower tetrachord is MixolydIonian and the upper PhrygAeolian, the other name points to the overall balance in this clustered tonality, its pitch and step distribution, orientation, and flavoring. IonAeolian or ClusterBal is also known as melodic major and as minor over major (Min/Ma).
- Step pattern: Ascending from the fundamental (tonic or Do), two whole steps lead to a half step followed by one single whole step and another half step. Two consecutive whole steps then lead up to the octave.
- Scale intervals: Major second, major third, quart, quint, minor sixth, and minor seventh.
- Tetrachords: The lower tetrachord is MixolydIonian and the upper is PhrygAeolian.
- Harmonic axes: There are two tilted axes that mirror each other, EN-WS and ES-WN.
- Primary harmonic anchors: The fundamental or North anchor is fully present. The East and West anchors are each incomplete with both their legs but no head. The contrast or South anchor is completely absent.
- Secondary harmonic anchors: Two secondary anchors are present, SE and SW. Both strengthen the fundamental North anchor, one the quint the other the quart. Further, though to a lesser degree, one gives more weight to the East and the other to the West anchor.
- Overall balance and symmetry: Placement of pitches, intervals, and axes of East and West mirror each other. This results in a striking balance between regressive and progressive, major and minor flavored elements.