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{{Infobox ET|45ed64}}
{{Infobox ET}}
'''15ED4''' is the [[Ed4|equal division of the double octave]] into 15 parts of 160 [[cent|cents]] each (every second step of [[15edo]]).  
{{ED intro}} It is every second step of [[15edo]].


Lookalikes: [[12edt]]
Lookalikes: [[12edt]]


=Basics=
== Basics ==
15ED4 is a macrotonal tuning system that divides the double octave (4/1) into 15 equally spaced pitches each 160 cents apart. It can be viewed as a subset of 15 EDO that repeats at two octaves rather than one. It has [[The Xen|a big xen]] appeal as it is nonoctave but at the same time contains the double octave allowing for a sort of best of both worlds approach. 15ED4 doesn't do Just Intonation well for the most part but it does represent 7/4 and 11/10 rather well, so it can be viewed as a 3.4.7.10.11 subgroup temperament tempering out 28/27, 49/48, 55/54, and 77/75 (as well as [[12edt|12EDT]]).
15ED4 is a macrotonal tuning system that divides the double octave (4/1) into 15 equally spaced pitches each 160 cents apart. It can be viewed as a subset of 15 EDO that repeats at two octaves rather than one. It has [[The Xen|a big xen]] appeal as it is nonoctave but at the same time contains the double octave allowing for a sort of best of both worlds approach. 15ED4 doesn't do Just Intonation well for the most part but it does represent 7/4 and 11/10 rather well, so it can be viewed as a 3.4.7.10.11 subgroup temperament tempering out 28/27, 49/48, 55/54, and 77/75 (as well as [[12edt|12EDT]]).
{{harmonics in equal|15|4|columns=14}}
{{Harmonics in equal
| steps = 15
| num = 4
| denom = 1
}}
{{Harmonics in equal
| steps = 15
| num = 4
| denom = 1
| start = 12
| collapsed = 1
}}


=MOS Scales=
== MOS Scales ==
There are a variety of Mos scales available. William Lynch considers the symmetrical MOS: LsLsLsLs to be the most consonant scale in 15ED4. There is also a LsLLsLLLs scale which is more spacey sounding than the symmetrical MOS. The symmetrical MOS can be harmonized with c
There are a variety of Mos scales available. William Lynch considers the symmetrical MOS: LsLsLsLs to be the most consonant scale in 15ED4. There is also a LsLLsLLLs scale which is more spacey sounding than the symmetrical MOS. The symmetrical MOS can be harmonized with c.
 
== Intervals ==
{{Interval table}}


[[Category:macrotonal]]
[[Category:macrotonal]]
[[Category:Ed4]]