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Unit 1 · Vowels that carry

Pure vowels

Hold ah, eh, ee, oh and oo pure from start to end on a drone's note, without drifting sharp on "ee" or flat on "oo", with a loose jaw. Free, step by step.

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

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What it teaches

Hold each vowel pure, the same from start to end. Singers tend to drift sharp on "ee" and flat on "oo": the app hears that.

One vowel. The same all through

On the note. Ee not sharp, oo not flat

A loose jaw. A loose jaw and an easy tongue: the tongue does t, d, n, l and s, and the jaw barely moves. Light consonants, never pushed. Stop if anything tightens.

What you sing

  1. Ah, eh, ee, oh, oo, each held on the drone's note.

Singing safely

A loose jaw and an easy tongue: light consonants, never pushed. A medium volume, the middle of your voice. Stop if anything tightens.

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.

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