me respondo a mi mismo
An octave is the interval between two points where the frequency at the second point is twice the frequency of the first.
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A musical tone is eight full tones above or below an another tone, with twice or half as many vibrations per second as the other tone.
Como curiosidad, nada más, la expresión matemática que genera esa tabla es una función exponencial (en base 2) de dos variables discretas:
f (N,O) = 440*2^( N/12 + O - 5) [Hz]
Para una nota 'N' perteneciente al rango de valores discretos [3,4,5...,13,14] = [C,C#,D,...,A#,B]
y para la octavas [0,1,2,...10].
Ej1: Nota La (A) de la 4a octava: N = A = 12, O = 4 -> f (12,4) = 440*2^( 12/12 + 4 - 5 ) = 440*2^(0) = 440*1 = 440 [Hz]
Ej2: Nota Mi (E) de la 3a octava: N = E = 7, O = 3 -> f(7,3) = 440*2^( 7/12 + 3 - 5) = 440*2^( -17/12) = 440*0,3746 = 164,8137 [Hz]