Scale Generator

Discrete pitch selections from the continuous frequency line

A scale is a discrete subset of pitches chosen from the continuous logarithmic frequency line. Compare diatonic modes, pentatonics, whole-tone, chromatic, and just-intonation — and read the cents deviation from equal temperament.

Audio plays when you click a degree or press ascending/descending. Each degree is a sine pulse.

Root note

Root frequency: 220.0 Hz

Scale

Degree	Semitones	Ratio	Frequency
1	0	$2^{0/12}$	220.00 Hz
2	2	$2^{2/12}$	246.94 Hz
3	4	$2^{4/12}$	277.18 Hz
4	5	$2^{5/12}$	293.66 Hz
5	7	$2^{7/12}$	329.63 Hz
6	9	$2^{9/12}$	369.99 Hz
7	11	$2^{11/12}$	415.30 Hz
8	12	$2^{12/12}$	440.00 Hz

A scale is a discrete selection from the continuous frequency line. Just-intonation preserves integer ratios; 12-TET distributes the octave into 12 equal logarithmic steps.

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