Stackapella Open the app

Unit 1 · The floor

Bright or dark?

Hear the same top notes make a bright chord or a dark one depending on the bass, choose by ear, then hold the root that makes it dark. Free, in short steps.

Free in the app: sing one lesson of each course with no account; a free account opens the course unit by unit.

More in The floor

Bright or dark?

The same notes on top can make a bright chord or a dark one. The bass decides.

Two notes on top. They never move

A new bass. And the chord changes

Then you. Sing the root of a dark chord

What you sing

  1. Listen to each, as often as you like, then choose.
  2. Now be the bass that makes it dark: hold la, the root, under the group.
Try one round

Challenge: The four chords

Twice through the four chords with the guide, then a new order with no guide bass: find each root by ear.

With the guide. The line you know, twice

On your own. Do, fa, so, do, a little quicker

Listen up. The group's chord tells you the root

What you sing

  1. Twice through with the guide bass, a breath between.
  2. Now no guide bass, and a new order: I, IV, V, I. Find each root under the group.

Singing safely

Low and easy: never press, growl or tuck your chin to reach a note, and keep your throat where it is when you speak. Stop if anything tightens or hurts.

Free tools by Stackapella

All of these are free, and so is every course.

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.

More free tools

No account, no ads. Each one keeps working offline once you've opened it.

See all 17 tools