Melody Generator
Generate melodies by genre, mode and complexity, then shape them note by note on the staff. Regenerate a bar without touching the rest.
Generate a melodySeed your AI songWith a hook that lands
Go beyond generic AI melodies with Choorus. Generate head bopping melodies you can shape, with chords and lyrics to match.
Why Choorus
Start with an idea you can edit
Every part of the seed can be changed before passing it to an audio generator.
Granular control
Build a masterpiece in parts
Choorus writes melody, chords and lyrics as separate parts on a real score, so every songwriting decision stays in your hands. Change one bar without touching the rest, then take the finished parts wherever the song goes next.
- Highlight a word, a measure, or a single chord and re-generate only that
- Edit any note, chord or syllable by hand, with version history
- Export MIDI or audio of each part to any DAW
Music theory on a dial
Chords at any level
Choose how adventurous the chords should be and Choorus fits a progression to your melody, from diatonic triads to secondary dominants, borrowed chords, and extensions.
- Three levels: Easy, Normal and Complex
- Every suggestion is fitted to the melody you already have
- Highlight only the chords you want to re-generate
New chord progression
C majorLevel 1 · Easy
Diatonic triads
C
I
G
V
Am
vi
F
IV
Level 2 · Normal
Sevenths, suspensions and inversions
C
I
Gsus4
V(sus4)
Am7
vi7
Dm7
ii7
Level 3 · Complex
Secondary dominants, borrowed chords and extensions
Cadd9
I(add9)
E
III
Am
vi
B♭
♭VII
Instant vocal
Hear every change sung
The vocal is re-rendered on every change you make with a commercially licensed AI voice, so you hear your melodies sung out loud.
- Vocals re-render after every lyric or melody change
- Playback highlights the notes and chords as they sound
- Download the sung demo as MP3 or WAV
Chorus 1
Highlight lyrics to generate 4 selected
Andifthenightlookslikeit'sjustget-tingstart-ed
GenerateVocal re-rendered
0:04
Works with your tools
Write it here, finish it anywhere
Write the parts
Melody, chords and lyrics land on one score. Update a note, a chord, or a lyric individually while leaving the rest of the song intact.
Hear it sung
The vocal re-renders on every edit, so you hear the melody sung aloud.
Take it anywhere
Hand the seed to your audio generator as lyrics, MIDI and a sung demo. What comes back is a high-fidelity track that stays true to it.
Three integrated tools in one notation editor
Chord Progressions
Progressions fitted to your melody at three levels of music theory, from diatonic triads to secondary dominants and borrowed chords.
Explore chord levels
Lyric Assistant
Lyrics that land on the rhythm of your melody, sung back to you by a commercially licensed AI voice the moment they change.
Write lyricsBuilt by musicians
Made for people who finish songs
Our models understand song structure and music theory, so your time goes into ideas rather than scaffolding.
Every melody, chord progression and lyric you generate is yours. No royalties, no licensing fees.
We started Choorus because, as musicians, we were fascinated by the magic behind melodies. Sign up below to follow what we learn along the way and to hear about new features first.
FREQUENTLY ASKED QUESTIONS
How does Choorus fit with AI music generators?
Think of Choorus as the writing room. Audio generators are great at producing a finished track from a prompt, and Choorus is where you work out what that track should be. Write the melody, chords and lyrics as editable notation, hear them sung, then bring the lyrics, the MIDI and the sung demo to the generator or DAW you already use.
Can I edit what Choorus generates?
Yes. Everything lands on an editable score. Change notes, chords and lyrics by hand, or highlight a selection and regenerate just that part while the rest of the section stays as it is.
What do the chord complexity levels mean?
Easy keeps to diatonic triads. Normal adds sevenths, suspensions and inversions. Complex brings in secondary dominants, borrowed chords and extensions. Whatever the level, the progression is fitted to the melody you already have.
Can I hear my lyrics sung?
Yes. Every time your lyrics or melody change, the vocal is re-rendered with a commercially licensed AI voice, so you can hear the idea out loud and download it as MP3 or WAV.
Do I need to read music?
No. The score helps if you do, but playback, the sung vocal and MIDI export mean you can work entirely by ear.
How do we ensure originality?
We've built a rigorous process that evaluates each generated result for originality and creativity. Everything you generate is yours, with no royalties or licensing fees.
Which languages are supported?
We can currently only render the sung vocals in English and we are working on adding more languages.