Octave = 12 semitones
2 = x.x.x.Ö.. = x12
Calculate Tempered Frequency Ratios
semitone ratio: x = 1.05946...
whole tone ratio: 2 semi = x2 =1.1225
minor third ratio: 3 semi = x3 = 1.189 not very good
major third ratio: 4 semi = x4 = 1.260 not very good
fifth ratio: 7 semi = x7 = 1.498 very good
ìperfect fifthî
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