AI String Section
The AI string section in Veena, a free AI DAW with a personal music producer built in, writes like an arranger instead of holding one pad under everything. CoProducer puts violins on the line, violas and cellos in the harmony and basses under it all, each on its own editable track.
Five voices, one section
A string section is a choir of five, and good string writing gives each voice a job.
- First violins carry the top line, from the G below middle C to as high as the song can stand.
- Second violins harmonize underneath or double the firsts an octave down.
- Violas fill the middle, a fifth below the violins at the bottom of their range. They're the glue nobody notices until they're gone.
- Cellos sing in the tenor range, an octave below the violas, and they take melodies beautifully.
- Basses double the cellos an octave down or hold the root, down to a low E that you feel more than hear.
And a section does four things with those voices: pads (long notes that hold the harmony), lines (a melody or a counter-melody), rhythm (ostinatos, stabs and pizzicato) and unison (every voice in octaves for the biggest moment in the song). Most arrangements move between all four as the song builds.
Directions for your AI string section
Talk to CoProducer like an arranger talks to a copyist. It understands the vocabulary, and each direction edits the parts you already have.
| Direction | Who plays it | Why arrangers do it |
|---|---|---|
| "Pads in the verse, lines in the chorus" | The whole section, then the violins | The verse leaves room for the vocal; the chorus gets a second hook |
| "Cellos take the melody an octave down" | Cellos | A warm doubling that thickens a chorus without crowding it |
| "Pizzicato eighths under the verse" | Pizzicato strings | Rhythm without weight: the section ticks like a clock |
| "Violins in octaves on the hook" | First and second violins | The biggest sound strings make, saved for once or twice a song |
| "Contrary motion" | Violins climbing, cellos falling | The chord opens like a door and the ear hears it move |
| "Keep the violins above the vocal" | Violins | Strings in the singer's range mask the words |
| "Basses out until the chorus" | Contrabass | The chorus gets a new floor, so it feels bigger |
| "Build over the last four bars" | Everyone, climbing | A crescendo written into the notes: higher, busier, harder |
CoProducer, the AI music producer in Veena, writes the strings against what's already in the song, reading the chords and the melody that are actually placed, so the parts follow your harmony instead of a guess about it.
Three string charts
Three charts in three styles; the rest are on make music by genre.
The pop ballad, 72 BPM.
"Strings for a 72 BPM pop ballad in C major: long chords from the whole section in the verses, violins answering the vocal in the second chorus, cellos on the melody in the bridge, basses out until the first chorus."
Listen for the entrance of the basses on the first chorus. If it feels too big too soon, say "hold the basses until the last chorus".
The hip hop string loop, 88 BPM.
"88 BPM hip hop in G minor built on a string loop: violins playing a four-bar minor phrase, cellos holding the roots, a pizzicato answer in bars 3 and 4, dusty drums and a round bass."
This is the soul-sample sound, written from scratch so every note is yours. Ask for "shorter, choppier violins" to make it sit like a chopped sample. More in hip hop beats.
The string quartet, 3/4.
"A string quartet in 3/4 at 108 BPM in D major: first violin on the melody, second violin and viola on beats two and three, cello on the downbeats. A 16-bar theme, then repeat it with the cello on the melody."
Classical requests land a first result on day one 80.0% of the time for new users, in Veena's own data. The classical page covers the forms.
Hum the line, hear it on cello
The best string lines often start as something you sang in the car. Hum or sing the melody into your mic, or drop in a voice memo, and ask: "turn my humming into a cello line". CoProducer detects the pitches, writes the melody as an editable MIDI part on a new track and mutes your recording. Set the part to Violin, Viola or Cello and it's playing the line you sang. Prefer the sound of your own phrasing? Ask CoProducer to re-voice the recording itself as strings. The voice to instrument page shows both routes.
Editing the section, one voice at a time
Because each section is its own MIDI track, you can arrange like an arranger.
- Voice leading. Open a part in the Piano Roll and drag the note that jumps. Inner voices should move by step; the top and bottom lines can travel.
- Dynamics. Raise the velocities bar by bar in the velocity editor and the section swells into the chorus.
- Connection. Lengthen notes so each one meets the next, and a line turns from detached to singing.
- Sound. Swap between the six presets on the Strings shelf (Violin, Viola, Cello, Contrabass, String Ensemble and Pizzicato Strings), or put the chords on the Synth shelf's String Pad. With the Veena Bridge on a Mac or Windows computer, CoProducer can play the parts through your own string library.
- Take it anywhere. Export the strings as MIDI for a notation program or an orchestrator, or as WAV at 24-bit/48 kHz, one file per section. No cap, no watermark. The melody generator helps when the violins need a new tune to play.
String tools that make you write the notes
ACE Studio markets "the world's first AI string sections that actually feel alive". Its own documentation explains the catch: to hear an AI instrument, you "create a clip on this track from the canvas with MIDI notes as its content" (ACE Studio's site and documentation, September 2026). The section performs; you still write every note of the arrangement. And it's a desktop download for macOS 13 or later and Windows 10 or 11.
Aiode offers its orchestral sound as one style model, the Cinematic "Orchestral Layers", in a studio that calls itself "currently in beta". Its Free plan allows "2 Mix or Region exports a month" with no commercial license (Aiode's product and pricing pages, September 2026).
Song generators. A Suno song has its strings mixed into one finished render, so you can't ask the cellos to take the bridge. Working part by part means Suno Studio, which comes with the $30-a-month Premier plan (Suno's pricing page, September 2026).
| Veena (CoProducer) | ACE Studio | Aiode | Suno | |
|---|---|---|---|---|
| Who writes the parts | CoProducer, from plain words | You write the MIDI; the AI performs it | One orchestral layer model | The generator, inside one render |
| Separate sections | Violins, violas, cellos and basses on their own tracks | Violins, violas and cellos as AI instruments | A single "Orchestral Layers" model | Mixed together |
| Where it runs | Any modern browser, phones included | Desktop app, macOS or Windows | Web and desktop, in beta | Browser |
| What you get | Editable MIDI for every section, with the band and mix around it | AI performances of your MIDI | Stems for another DAW | A finished song |
Give the downbeat
Paste the prompt below into CoProducer, pick the best of three takes for each part, then shape it one direction at a time. When the strings want company, the AI orchestra page takes the section into cinematic writing, and the AI pianist gives them chords to sit on.
Try this in Veena
Write a string section for a 72 BPM pop ballad in C major: long chords from the whole section in the verses, violins answering the vocal with a counter-melody in the second chorus, cellos taking the melody an octave down in the bridge, basses out until the first chorus, and a four-bar build into the last chorus, all over a soft grand piano.
Frequently asked questions
Can AI write a string arrangement for my song?
Yes. Veena is an AI DAW with a personal music producer built in. Describe the song you want and CoProducer builds it with you — beats, chords, melody, arrangement and mix — as real tracks you can edit, mix and export. Free, in your browser. For strings, CoProducer writes the section as separate parts that follow your chords and stay out of the vocal's way.
Can I get separate violin, viola, cello and bass parts?
Yes. Veena's Strings shelf has Violin, Viola, Cello, Contrabass, String Ensemble and Pizzicato Strings, and CoProducer can put each section on its own track. Open any part in the Piano Roll to fix the voice leading, and export the strings as MIDI for a notation program or as audio, one file per section.
Can I hum a string melody and turn it into a violin or cello?
Yes. Hum or sing the line into Veena, then ask CoProducer to turn it into a cello part. It detects the pitches and writes an editable MIDI part on a new track, with your recording muted. Or ask it to re-voice the recording itself as strings, and the new audio lands on its own track.
Can I use my own orchestral string library?
Yes. Install the Veena Bridge on a Mac, with VST3 and AU, or on Windows, with VST3, and CoProducer can play its string parts through the libraries you already own, starting from their real presets. It knows Kontakt by name. The notes stay editable, so you can switch between Veena's strings and yours.
Meet your personal music producer
Free, in your browser. Describe the song you want and CoProducer builds it with you.
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