64/51
| Interval information |
octave-reduced 51st subharmonic
reduced subharmonic
64/51, the septendecimal artomean major third or octave-reduced 51st subharmonic, is a 17-limit major third of approximately 393 ¢. It is very closely approximated by the classic (meantone) major third (18\55) of 55edo and by the down-major third (19\58) of 58edo.