Stackapella Open the app

Make your own arrangement

Sing your melody or write it note by note. Stackapella suggests the other parts, and you can change anything.

Start singing

Free, in your browser. No account needed to start.

Sing it, or write it

Paste the words, then sing the melody a line at a time with the words in front of you. The app finds the notes and fits each syllable. Or enter the notes yourself, in an editor where every note sounds as you place it.

The other parts, suggested

From your melody, Stackapella writes an alto, tenor and bass to fit it, in three styles to hear and choose from. Try another chord where a bar doesn't sit right, or write the parts yourself.

Share it to be learned

Try it as a learner, then share it by link: friends learn it part by part, like any of our songs. You can also start from a copy of one of ours.

  • Free: make your own, and keep one on your account to share
  • Plus: as many private and unlisted arrangements as you like

Coming soon Instrument parts, and your own recorded voice as the guide on Plus.

Start from chords

Start from chords instead of a tune: pick a progression or a 12-bar blues in a key that suits your voice, sing over a simple backing, and the chords become the harmony parts.

Coming soon A chorus and a bridge suggested to go with your verse.

Goes well with

Everything it does

Make a song your own.

Sing the tune or write it, and hear the other parts suggested.

Start singing