No, the notes in an octave or, to be more precise, no consecutive musical notes(in chromatic scale) are equally spaced.
Mathematically, the musical notes form a Geometric Progression(G.P) and not an Arithmetic Progression(A.P) with a common ratio of 2^(1/12)(i.e. twelfth root of 2 or 1.059)
Now, music as we know it today has developed over thousands of years and there must be a reason for why we have se
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