Articles / How to make AI sing a melody you wrote
How to make AI sing a melody you wrote
You have a melody and lyrics, and you cannot sing them. Suno, Udio, and the lyrics-to-song sites write a new tune. Synthesizer V, ACE Studio, Vocaloid, Emvoice, and Mozarella sing the notes you enter. That job is called singing voice synthesis. Mozarella is ours.
Generators and singing voice synthesis
Melody generators take your lyrics and write the tune. Suno, Udio, and the lyrics-to-song sites work this way. They are fast, the mix can sound finished, and the melody that comes back is theirs.
Singing voice synthesis takes notes plus words and performs that line: your pitches, your rhythm, and your words, in a voice you chose. If the tool has nowhere to enter notes, it will not sing your melody.
The four steps
- Get the melody into notes. Hum it into a voice memo and run the file through Basic Pitch (free, in the browser), or click it into a piano roll by ear. One note per syllable is the target.
- Put the words under the notes. Every tool below takes lyrics typed onto notes. Split words across notes where a syllable is held. Multi-syllable words need one note each.
- Pick the tool by where the song lives. Still being written: Mozarella. A finished MIDI file: Synthesizer V or ACE Studio. Already a DAW session: Emvoice. The full ranking is in the AI singers list linked at the end.
- Choose a voice and render. Match the voice's range to the melody, or shift the key first. Render, listen for vowels that smear, and fix those notes rather than the whole take.
Mozarella (ours)
Mozarella is a song sketch pad in the browser. You set the key and chords, write the melody in the app or edit one it proposes, type the lyrics, pick from twenty-plus voices or a clone of yours, and get a sung take of that line inside the arrangement. Nothing to install. A free account gets one sung take.
The desktop tools below sing a MIDI file you bring them. Here you write the song and hear that line sung in the same arrangement. You cannot draw pitch curves or edit vibrato note by note, and the vocal features are in premium. Composing is free to try.
Synthesizer V Studio
Desktop software, and producers use it on released records. You draw or import the melody, type lyrics on the notes, and edit pitch curves, tension, and breath. The Studio 2 Pro editor is $99 once, $149 with one voice, and each extra voice is $79. The learning curve matches that control.
ACE Studio
A desktop vocal studio for Windows and Mac, with a DAW bridge plugin, over 140 voices, and voice cloning on every plan. Plans run $16.58 to $22 a month billed yearly, and rendering is metered by monthly credits. There is no browser version. Bring MIDI you already wrote when you want to edit the performance. ACE Studio sings that line, and you write the song elsewhere.
Vocaloid 6
The tool that started the category, and still the center of the voicebank scene. Desktop, one-time license: the editor is $225 with twenty-five voices, starter packs start at $243, and there is a 31-day trial. The sound stays more stylized than Synthesizer V, which is what a Vocaloid record is for. Use Synthesizer V when the demo needs to sound like a person.
Emvoice One
A plugin that runs inside your DAW. Type lyrics onto MIDI notes in Logic, Ableton, or Reaper, and it renders the vocal on that track. The plugin is free, and voices are about $99 each, owned outright. Use it when the song is already a DAW session.
Voice conversion
Kits AI and the RVC family do not read notes. You sing the line, and they replace your timbre with another voice while keeping your pitch and timing. Use them when you can hold the tune and want a different tone. When you cannot sing the line, use singing voice synthesis above.
Side by side
| Runs | You provide | Pricing | Best for | |
|---|---|---|---|---|
| Mozarella | Browser | Melody + lyrics, written in the app | Free to compose, vocals in premium | Writing the song and the vocal together |
| Synthesizer V | Desktop | MIDI + lyrics | Editor + paid voicebanks | Release-quality vocals |
| ACE Studio | Desktop + DAW plugin | MIDI + lyrics | Subscription, credit-metered | Deep control on existing MIDI |
| Vocaloid 6 | Desktop | MIDI + lyrics | One-time + voicebanks | The classic stylized sound |
| Emvoice One | DAW plugin | MIDI + lyrics | Per voice | Vocals inside a DAW session |
| Kits AI / RVC | Browser / local | Your own sung take | Subscription / free | Replacing the timbre of a take you sang |
Common questions
Can Suno or Udio sing my exact melody?
Not reliably. They generate a song from your input, and the melody that comes back is the model's. When the notes matter, use singing voice synthesis: a tool that takes notes plus lyrics and performs that line.
What if my melody is just a hum or a voice memo?
Convert it to notes first. Audio-to-MIDI tools can transcribe a clean hum, or you can retype it into a piano roll by ear. Once it exists as notes, any tool on this page can sing it. The other route is voice conversion: sing the line yourself, keep your timing, and have AI replace the timbre.
Do I still own the song if an AI sings it?
The melody and lyrics you wrote stay your work, the same way they would if a session singer performed them. A prompt-only track is the case the US Copyright Office treats as unprotectable.
Is there a free way to try this?
Mozarella is free to compose in, and a free account gets one sung take. Vocaloid 6 has a 31-day full trial, VoiSona is free with one voice, and NEUTRINO is free outright. Prices checked September 26, 2026.
On ownership, the longer answer is in Who owns a song made with AI? For how this differs from prompt generation, see Mozarella vs Suno. Every tool ranked, with September 2026 prices: Best AI singers that follow your melody.
Related
- Best AI singers that follow your melody (2026)Eight tools that sing your exact notes, ranked, and the generators that swap your melody for their own.
- Who owns a song made with AI?A melody and lyrics you wrote stay yours. A prompt-only track is not copyrightable.
- Mozarella vs SunoSuno returns a mixed track from a text prompt. Mozarella builds the score you edit.
All articles. Mozarella is a song sketch pad in the browser, free to start. Open the app or read the FAQ.