This file is from a shared repository and may be used by other projects.
The description on its file description page there is shown below.
Summary
Description31ed2.svg
English: 21-Odd-limit just intonation intervals compared to 31 equal divisions of the octave.
31-EDO is equivalent to the historically-important tuning of quarter-comma meantone, where the perfect fifths are flattened from just so that a chain of four perfect fifths gives a justly-tuned major third. When the 31 notes of quarter-comma meantone are equally spaced, the major thirds are only one cent sharper than 5:4.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.