The Unison: Unity

unity, sameness, agreement, shared purpose, cahoots, enabling Ratio: 1:1

If we invert an Octave dyad -- raise or lower either of its notes by an octave -- we end up with a Unison: two instances of exactly the same pitch. Although included with the Harmonies, the dyad of the Unison is technically not a harmony at all: there is no open space within it, no difference in frequency.

In a casting the Unison indicates unity. This can manifest in many ways: as agreement, as cahoots or a unified front, as shared purposes or conspiracy, or simply as sameness. Its extreme consonance points toward ease between that which is unified. If the Unison has arisen or is playing out unconsciously, however, it can indicate codependency or enabling.