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Unit 1 · Make it ring

Who's out?

Hear how one voice slightly out of tune makes a whole chord beat, then pick which of the four parts it is: bass, baritone, lead or tenor. Free, by ear.

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More in Make it ring

Who's out?

One voice out of tune makes the whole chord beat. Find it.

Bass, bari, lead, tenor. Low to high

One is off. By about a fifth of a half step

Listen for the shimmer. Which voice is it in?

What you sing

  1. Each chord has one voice 20 cents out. Which one?
Try one round

Challenge: Every seat

One chord, three seats: the fifth, the root, then the third. The third is scored.

The fifth. So, where the piano puts it

The root. Do, the floor of the chord

The third. Mi, 14 cents low

What you sing

  1. The fifth, the easy seat: hold so while the others sing theirs. Headphones on.
  2. The root: hold do while the others sing around you. Headphones on.
  3. And the third: hold mi until the chord rings. Headphones on.

Singing safely

Sing straight, not squeezed, at a medium-soft volume. Wear headphones: ringing needs them. Stop if anything tightens or hurts, and rest when hoarse.

Free tools by Stackapella

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Stackapella teaches you to sing harmony one part at a time, right in your browser.

Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up.
  • A guide sings your partHear your line over the others, slow it down, then take your turn.
  • Your notes light upEach note shows where you landed, and a hint when to go up or down.
  • Record every part yourselfStack your takes in time until you're the whole choir.
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