SATB Arranger for Choir Directors
The SATB arranger is the generator path: paste, upload or capture a melody and receive soprano, alto, tenor and bass as a draft you can hear before rehearsal. It is the same honest loop as the SATB arrangement app — a faster first pass, not a finished score without a musician in control.
Start from a typed melody, MusicXML, MIDI, PDF, image or audio. Generate the four-part idea. Listen. Review voice leading. Edit what your choir can actually sing. Then export PDF, MIDI or MusicXML. That is the weeknight workflow this page is built for. The arranger does not replace taste, pastoral context, or the last engraving pass in your notation editor.
SATB arrangement app · Plans & pricing · Open the rehearsal kit
How the SATB arranger works
Bring the melody first. You can type or paste a line, import MusicXML or MIDI, photograph a score, or capture audio. CantuStudio turns that input into a four-part SATB draft you can inspect. You should see which voice has the tune, where the inner voices sit, and whether the bass is doing harmonic work. Listen before the choir hears it. Then keep the musical decision.
The useful search answer is not a magic claim. It is a sequence: add your melody, choose the choir style, generate the SATB draft, review with playback, export for rehearsal. Stop losing the first hour to blank staff paper. The tool gives you a musical starting point fast, then leaves listen, adjust, export and rehearse with you.
Decorative motion on weak beats is a later conversation. Unresolved non-chord tones on strong beats are defects. Strong-beat validation takes priority over ornamental inner motion. If a downbeat pitch is not in the chord and does not resolve, treat it as something to fix before rehearsal, not as color.
Who the SATB arranger is for
Church choir directors use it to turn a hymn melody into a first SATB draft and arrive at rehearsal with parts to test. Music teachers use it to show how a melody becomes soprano, alto, tenor and bass. Independent arrangers use it to move from sketch to MusicXML without losing control of the score.
If you need a camera-ready anthem, finish in your notation editor. If you need a reviewable starting point before the room fills, start here. The page is for the rehearsal deadline, not for a one-click Sunday folder.
Church choir use
Church choir is a strong fit because the tune is often already known and the missing work is the four-part draft. A familiar hymn, a short anthem, or a line hummed after service can become a SATB idea you hear before the first tutti. The arranger does not decide liturgy, copyright or whether the piece belongs this Sunday. A musician still reviews ranges, text stress and musical fit.
Arrive with something to test. Listen to each voice. Check whether the alto line sits where your section can sustain it. Decide if the bass is hopping tonic and fifth or doing harmonic work. Then export the files your choir already uses.
Export PDF, MIDI and MusicXML
PDF is the rehearsal folder. MIDI is practice and playback. MusicXML is the handoff to Finale, MuseScore, Sibelius or Dorico. None of these exports is a claim that the file is camera-ready. They are the next step after a reviewable SATB idea. Some directors print. Some send MIDI for home practice. Some continue in a notation app after MusicXML.
After you trust the draft enough to share, the rehearsal kit can put each voice in the singer’s pocket. That step still comes after review, not instead of it. The SATB arrangement app and choir-director AI tool pages describe the same honest draft-and-review loop.
Voice-leading review before rehearsal
A draft that looks full on the page can still fail in the room. Parallel fifths and octaves, voice crossing, and ranges your altos or tenors cannot sustain will cost rehearsal minutes. After the draft is generated you can review voice leading and hear playback before taking the parts to rehearsal. The check can point at ranges, crossings and parallels. You decide what is singable this week.
Keep the musical decision. Public claims stay conservative until a draft has been heard, reviewed and accepted by a musician. The arranger speeds the first pass. It does not certify a final arrangement.
Trial and pricing
Start a draft from this page. Free includes a short no-signup demo (up to 16 notes) and a free account with monthly limits: 10 harmonizations and 2 MIDI exports. Paid Pro starts at R$24.90 per month in BRL, with yearly billing up to R$249.90. Pro unlocks unlimited drafts plus PDF, MIDI, MusicXML and the rehearsal kit. Sign in to subscribe. Exact current limits live on the English pricing page. This page does not invent a free-trial length, star ratings or traffic numbers.
Current safe positioning stays narrow. The SATB arranger can speed the first four-part draft and the review workflow. A musician, choir director or teacher should still review the output before rehearsal or publication. Broader distribution claims wait on documented user workflows, playback and musical review. If you want public-domain hymn starting points, use the SATB hymns hub. The SATB arrangement app describes the same honest loop in app-landing language; this page is the generator path.
SATB arrangement app · AI tool for choir directors · Plans & pricing · Rehearsal kit
What you need to know
What can I start from?
Start from a typed or pasted melody, MusicXML, MIDI, PDF, image or audio. CantuStudio turns that input into a four-part SATB draft you can review before rehearsal.
Does the AI write the final arrangement?
No. It creates a practical draft for you to revise. You keep control of musical taste, rehearsal choices and final edits.
Does it review voice leading?
Yes. After the draft is generated you can review voice leading and hear playback before taking the parts to rehearsal.
What can I export?
Export PDF for rehearsal, MIDI for practice or playback, and MusicXML for Finale, Sibelius, MuseScore or Dorico.