AI vocal harmony generator
Published November 2026
Drop a dry vocal and the Vocal Harmonizer hears its melody and its key, plans up to four harmony voices together in the singer's range, phrase by phrase, and sings each one in the same voice as its own stem. The key is the melody's own unless you pin one. A take with no melody it can hear fails with that reason, never with an unharmonized copy.
Not a pitch-shifter
A harmonizer pedal or plugin moves your take up or down by an interval, so every harmony is the lead's own sound transposed, and it starts to sound processed the further it moves. Here each voice starts as the take shifted to its notes and is then re-sung by a vocal model, with your take as the singer. The harmony keeps the voice without keeping the pitch-shift.
Choose the voicing
- Thirds: a third above and a third below the lead.
- Sixths.
- Power: fourths, fifths and octaves.
- Close: a close triad under the lead.
- Wide: the voices spread out.
- Jazz: seventh chords.
- Barbershop.
Every voice is a scale interval in the key the melody sings, so the harmony stays in key from phrase to phrase rather than following one fixed interval.
Start from a dry vocal
One voice, no reverb, no music behind it: that is what the melody is heard from. If the vocal you want to harmonize sits in a finished song, lift it out first with the vocal remover. To change the words rather than add voices, Lyric Edit re-sings the vocal with new lyrics in the same voice.
Harmonize a vocal
Drop a dry vocal, pick a voicing, and get each harmony as its own stem.
Open the Vocal Harmonizer →FAQ
What is an AI harmony generator?
A tool that writes and sings harmony parts for a vocal. Doseedo’s Vocal Harmonizer hears the melody and key of a dry vocal, plans up to four voices in the singer’s range, and sings each in the same voice as its own stem.
Does the harmony sound like my voice?
Each voice is re-sung by a vocal model with your take as the singer, so it keeps your voice rather than a pitch-shifted copy of it. Listen to each take before you use it.
How many harmonies can it make?
Up to four voices, each returned as its own stem.
What key does it use?
The key the melody sings, heard from the take. You can pin a key instead.
Can I harmonize a vocal from a finished song?
Separate the vocal first with the vocal remover, then harmonize the separated vocal.
Songs straight into a DAW session · a song as the session it was built in
- Logic Proa sentence in, a .logicx out
- Text to MIDIevery part as a MIDI track
- With ClaudeClaude writes, Doseedo plays
- With ChatGPTlyrics to a real project
- Backing tracksa band for your own part
- Vocal harmonyharmonies in your own voice
- Suno to Logic Prostems, MIDI, tempo map
- Suno to Ableton Livea Suno song as a Live Set
- Suno to MIDIevery part, one upload
- Suno stemswhy they bleed, what helps
- Remix a songthe parts, not a new WAV
- Audio to sessionany mix as a project
- Score a filmcues to picture
