0:          1/1               0.000  unison, perfect prime
  1:         81/80             21.506  syntonic comma, Didymus comma
  2:         33/32             53.273  undecimal comma, al-Farabi's 1/4-tone
  3:         21/20             84.467  minor semitone
  4:         16/15            111.731  minor diatonic semitone
  5:         12/11            150.637  3/4-tone, undecimal neutral second
  6:         11/10            165.004  4/5-tone, Ptolemy's second
  7:         10/9             182.404  minor whole tone
  8:          9/8             203.910  major whole tone
  9:          8/7             231.174  septimal whole tone
 10:          7/6             266.871  septimal minor third
 11:         32/27            294.135  Pythagorean minor third
 12:          6/5             315.641  minor third
 13:         11/9             347.408  undecimal neutral third
 14:          5/4             386.314  major third
 15:         14/11            417.508  undecimal diminished fourth or major third
 16:          9/7             435.084  septimal major third, BP third
 17:         21/16            470.781  narrow fourth
 18:          4/3             498.045  perfect fourth
 19:         27/20            519.551  acute fourth
 20:         11/8             551.318  undecimal semi-augmented fourth
 21:          7/5             582.512  septimal or Huygens' tritone, BP fourth
 22:         10/7             617.488  Euler's tritone
 23:         16/11            648.682  undecimal semi-diminished fifth
 24:         40/27            680.449  grave fifth
 25:          3/2             701.955  perfect fifth
 26:         32/21            729.219  wide fifth
 27:         14/9             764.916  septimal minor sixth
 28:         11/7             782.492  undecimal augmented fifth
 29:          8/5             813.686  minor sixth
 30:         18/11            852.592  undecimal neutral sixth
 31:          5/3             884.359  major sixth, BP sixth
 32:         27/16            905.865  Pythagorean major sixth
 33:         12/7             933.129  septimal major sixth
 34:          7/4             968.826  harmonic seventh
 35:         16/9             996.090  Pythagorean minor seventh
 36:          9/5            1017.596  just minor seventh, BP seventh
 37:         20/11           1034.996  large minor seventh
 38:         11/6            1049.363  21/4-tone, undecimal neutral seventh
 39:         15/8            1088.269  classic major seventh
 40:         40/21           1115.533  acute major seventh
 41:         64/33           1146.727  33rd subharmonic
 42:        160/81           1178.494  octave - syntonic comma
 43:          2/1            1200.000  octave