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== 21edo oneiro theory ==
== 21edo oneiro theory ==
21edo has the [[Step ratio|soft]] [[oneirotonic]] (5L 3s) MOS with generator 8\21; in addition to the [[naiadic]]s (457.14¢) and extremely sharp fifths (742.85¢) that generate it, it has neutral thirds (instead of major thirds as in [[13edo]] oneirotonic), neogothic minor thirds, and meantone-like diatonic semitones. The oneirofifths (4-step intervals) are more tritone-like than fifth-like, unlike in 13edo, although they do have a consonant, even JI-like quality to them. In terms of JI, it mainly approximates 16:23:30 (R-Lmos5-Lmos8). Importantly, the sharp fifth is now harmonically much more fifth-like than the flat fifth, unlike in [[13edo]] and harder tunings. Rather than squashed tertian triads, as in 13edo and hypohard oneiro, the main consonance is now chords using seconds and sevenths (in addition to thirds and sixths), such as 0-171-457, 0-343-457, or 0-114-457, or 0-171-1086. The consonant 114¢ and 1086¢ intervals may help to mask some of the more dissonant sonorities such as the naiadic.
21edo has the [[Step ratio|soft]] [[oneirotonic]] (5L 3s) MOS with generator 8\21; in addition to the [[naiadic]]s (457.14¢) and extremely sharp fifths (742.85¢) that generate it, it has neutral thirds (instead of major thirds as in [[13edo]] oneirotonic), neogothic minor thirds, and meantone-like diatonic semitones. The oneirofifths (4-step intervals) are more tritone-like than fifth-like, unlike in 13edo, although they do have a consonant, even JI-like quality to them. In terms of JI, it mainly approximates 16:23:30 (R-Lmos5-Lmos8). Importantly, the sharp fifth is now harmonically much more fifth-like than the flat fifth, unlike in [[13edo]] and harder tunings. Rather than squashed tertian triads, as in 13edo and hypohard oneiro, the main consonance is now chords using seconds and sevenths (in addition to thirds and sixths), such as 0-171-457, 0-343-457, or 0-114-457, 0-114-400, or 0-171-1086. The consonant 114¢ and 1086¢ intervals may help to mask some of the more dissonant sonorities such as the naiadic.


34edo (semisoft) oneirotonic is broadly similar, except the small steps are more 12edo-like and less meantone-like.
34edo (semisoft) oneirotonic is broadly similar, except the small steps are more 12edo-like and less meantone-like.