# Random Key Generator

Roll a root, a mode and a chord path, then read the seven notes the mode puts on that root. Lock the parts you want to keep, copy the result, and roll again until something fits.

> Canonical: https://aimusicis.com/random-key-generator

## A random key generator that prints the notes it rolls

A key is a root, a mode and the seven notes between them. The generator draws all three, shows the notes as they land, and offers a short chord path that stays inside the mode you were given.

### Twelve roots and seven modes

Every roll starts from one of the twelve chromatic roots and one of the seven diatonic modes, from Ionian through Locrian.

### A chord path that belongs to the key

Each mode carries three progressions in Roman numerals, so the chords shown belong to the key you were given rather than to a generic list.

### Lock whatever you want to keep

A lock holds the root, the mode or the chord path in place, so the next roll only moves the parts you left free.

## Roll a key in three moves

### Roll a key

Press next key and the generator draws a root, a mode and one of that mode's chord paths.

### Read the seven notes

The notes of the mode are listed under the key, ready to play on an instrument or to enter in a piano roll.

### Lock or copy

Lock the root you like, or copy the key, its notes and its chord path as text you can paste anywhere.

## Keys, modes and chords, without an account

### 12 roots

The twelve chromatic roots a roll can land on, spelled with sharps so a copied result is unambiguous.

### 7 modes

Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian and Locrian, each with its own pattern of semitones.

### 3 progressions

Every mode carries three chord paths in Roman numerals, and one of them is drawn on each roll.

### 0 credits

No generation job is submitted, so a roll costs nothing and needs no account.

## Who rolls a key with this generator

### Songwriters stuck on a root

Roll until a root and a mode sound like the mood you are after, then write against the notes it prints.

### Producers starting a beat

Keep a root you already like, roll the mode, and take a chord path as the first idea in a new project.

### Teachers setting an exercise

Draw a key for a student to write in, or lock the mode and vary the root through a whole lesson.

## Tools related to Random Key Generator

### [Key & BPM Finder](https://aimusicis.com/key-bpm-finder)

### [Reverb Calculator](https://aimusicis.com/reverb-calculator)

### [Metronome](https://aimusicis.com/metronome)

### [Frequency Generator](https://aimusicis.com/frequency-generator)

## Random Key Generator FAQ

### What does the random key generator roll?

The random key generator draws one of twelve chromatic roots, one of seven diatonic modes, and one of that mode's three chord paths, then prints the seven notes the mode builds on the root.

### Which modes can the random key generator choose from?

The random key generator chooses from Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian and Locrian, each with its own pattern of semitones between the seven degrees.

### How are the seven notes of the key worked out?

The random key generator starts on the root and walks the mode's own interval pattern. Ionian on C returns C, D, E, F, G, A and B, while Aeolian on the same root returns C, D, D#, F, G, G# and A#.

### What are the chord paths shown with the key?

A chord path is a short progression written in Roman numerals, such as I, V, vi, IV in Ionian. Each one stays inside the mode's own chords, so it can be played over the key without leaving it.

### Can I keep a root or a mode that I like?

Locks hold the root, the mode or the chord path in place. The next roll keeps whatever is locked and chooses again only for the parts you left unlocked, which is how a root you like can survive a search for the right mode.

### Can I copy the result into another app?

The copy button writes the key, its seven notes and its chord path to the clipboard as plain text, so it can be pasted into a session note, a message or a project file.

### When is a rolled key the wrong starting point?

A rolled key is a starting point, not a guarantee. The random key generator never opens, uploads or analyzes an audio file, so it cannot tell you the key of a track you already recorded — use it to begin something, and check a finished take against the key it was written in.

### Does this generator need an account or credits?

The random key generator runs entirely in the browser. There is no sign-in, no credit cost and no upload, and a roll works offline once the page has loaded.

### How many credits does Random Key Generator use?

Random Key Generator runs in the browser and draws zero credits.

## Take the key into a session

Use the key you rolled as the starting point for a track, or check the key of something you already recorded.

_Last updated August 28, 2026_