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# Compare Pitches in an Octave

Calculator for the comparison of two tone pitches with a given distance of semitones. An octave has 12 semitones or half steps. When two tones have the distance of one octave, one tone has twice the frequency (pitch) of the other. The first tone of an octave here is labeled 1, the last 12. So 13 is the first tone of the next octave. The ratio between two neighboring tones is about 1.06.

Please enter two values, the third will be calculated.

Example: a fifth spans 7 semitones, e.g. tone 1 to tone 8. Tone 8 is almost 1.5 times higher than tone 1.

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