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Unit 1 · The lip trill

Keep it bubbling

Keep the bubble going longer and steadier on one easy breath. Can't trill yet? A hum or an "oo" does the same job here. A free lesson, in short steps.

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More in The lip trill

What it teaches

What you sing

  1. A gentler hill on one bubble. Can't trill yet? Hum or slide on "oo" instead: the app follows whatever easy sound you make.
  2. The same, a little longer, on one breath. Can't trill yet? Hum or slide on "oo" instead: the app follows whatever easy sound you make.

Singing safely

Keep every sound quiet to medium and easy, never forced, and stop if anything tightens, tickles or hurts. Can't trill yet? A hum or an "oo" does the same job here.

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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