Question 1

How many scales does the finder support?

Accepted Answer

Over 30 scale types including major (Ionian), natural/harmonic/melodic minor, all seven modes (Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian), major and minor pentatonic, blues, whole tone, diminished, augmented and more — each in all 12 keys.

Question 2

Can I hear what a scale sounds like?

Accepted Answer

Yes. Click the Play Scale button to hear the notes ascending and descending using the Web Audio API. Each note lights up on the piano as it plays.

Question 3

What chords work with a scale?

Accepted Answer

The Diatonic Chords section shows the seven triads built from each degree of the scale, using Roman numerals (I, ii, iii, IV, V, vi, vii°) so you can write progressions that stay in key.

Question 4

Is this useful for guitar and other instruments?

Accepted Answer

Yes. The notes and intervals shown work for any instrument — guitar, violin, flute, saxophone. Piano visualization helps you see the pattern, but the underlying music theory applies universally.

Scale Notes

Intervals & Formula

Diatonic Chords (triads)

Related / Relative