Draw a random musical scale from 232 -- modes, minors, pentatonics, and world traditions -- each spelled out and highlighted on a keyboard.
A scale is an ordered set of pitches within an octave, defined not by its notes but by the distances between them. Because the pattern is what matters, the same scale can start anywhere: the major scale is always tone-tone-semitone-tone-tone-tone-semitone, whether it begins on C or on Eb. That is why a mode -- Dorian, Mixolydian -- is the same seven notes read from a different starting point, and why learning one pattern gives you twelve keys rather than one.
This generator draws from 232 scales -- 5 families across eight roots -- covering Major & Its Modes, Minor Scales, Pentatonic & Blues, Symmetric & Exotic, and World Traditions. Each draw names the scale, spells its notes, and highlights them on a keyboard so the pattern is visible as a shape. Everything is computed from the family's interval formula, so no scale's notes can disagree with its own name.
Every result here is drawn using crypto.getRandomValues() -- the Web Crypto API's cryptographically secure randomness -- instead of Math.random(), so it's genuinely unpredictable, not just statistically random. Learn more.
Pick a scale to practise instead of defaulting to the same one, find a mode to improvise over a vamp, set an ear-training target, or explore the families most method books skip -- Hungarian minor, Hirajoshi, the altered scale. Drawing four in a row is a decent composition exercise on its own.
Generate draws one scale at random using the site's cryptographically secure randomness, never repeating the scale currently shown in single-result mode. The keyboard highlights every note in the scale with the root marked distinctly, and the note names beneath are spelled with sharps or flats according to the key. The Family filter narrows from the church modes to the symmetric scales.
A sample of what this generator can draw, spread evenly across the full list:
A mode is a scale read from a different starting degree. D Dorian contains the same seven notes as C major, but treats D as home, which changes everything about how it sounds over a chord.
Major, natural minor, and the minor pentatonic cover most popular music. After those, Mixolydian and Dorian open up nearly all blues, rock, and folk repertoire. Filter to Major & Its Modes or Pentatonic & Blues to draw only from those.
Because notation follows the key, not the pitch. F# and Gb sound identical; which one you write depends on which key signature keeps each letter name used exactly once. The generator spells sharp keys with sharps and flat keys with flats, as a musician would.
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