decadationn.
Music.
The process of converting one decad into another in order to obtain a new series of consonant triads, etc.
ΚΠ
1875 A. J. Ellis tr. H. L. F. von Helmholtz On Sensations of Tone 665 This change of one decad into another is called decadation.
This entry has not yet been fully updated (first published 1894; most recently modified version published online June 2019).
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n.1875