19edt: Difference between revisions

19 equal divisions of the tritave is not a "real" xenharmonic tuning; it is a slightly stretched version (with an octave of 1201.2 cents) of the normal [[12edo|12-tone scale]]. Although it is really just the normal 12edo tuning framed in a tritave equivalence, it can still be used as a temperament with no twos like other tritave tunings. This approach can create very non-standard chords and scales such as the approximation of the 5:7:9 chord as 0-600-1100 cents. These could be considered xenharmonic in a sense, since they have little connection to standard 12-tone practice in spite of using the 12-tone interval set. The "default" approach to it is as a “macro-[[godzilla]]" temperament (with a generator of 400.4 cents and a 3:1 ratio 5L 4s scale, weird coincidence how [[17edt]] and 19edt tonality have the same "default" scheme with two tones more or less). Beyond this, it also contains the tritave twin of [[meantone]] temperament (with a generator of 700.7 or 1101.1 cents), producing a basic [[8L 3s (3/1-equivalent)|Obikhod]] scale.

19edt or 12edo can be used like other EDTs, as a "no-twos" 3.5.7 system if you are so inclined, although with limited accuracy, with [[5/3]] approximated as 6 steps and [[7/3]] approximated by 15 steps.