Stackapella Open the app

Never sung harmony? Start here

You don't need to read music, or know which notes to sing. Stackapella shows you, one part at a time.

Start singing

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

The course map in the app: the next lesson, today's workout, and the week's days with your goal. The course map in the app: the next lesson, today's workout, and the week's days with your goal. The course map in the app: the next lesson, today's workout, and the week's days with your goal. The course map in the app: the next lesson, today's workout, and the week's days with your goal.

Start with one note

The course begins with a note you sing comfortably, and finds your range as you sing. Then it builds, one short lesson at a time: steady notes, moving notes, a tune, then harmony.

Your first harmony, free

Units 1 to 7 of the course are free. They end with you singing all four parts of Amazing Grace yourself, stacked in time.

What you need

Less than you might think.

  • The mic in your phone or laptop
  • Headphones, once you record over other parts
  • Nothing to install, and no account to start

Kind feedback

Your notes light up as you hit them, and a missed note never turns red. In the course's practice steps, the music waits while you find each note. After each try you get a kind word first, then one thing to try.

What you'll use

Everything it does

Also for

Start with one comfortable note.

Lesson 1 takes a minute, and it's free.

Start singing