Blend
Sing the harmony, not the melody.
Holding a second voice is a different skill from singing along, and you can practice it. You have to hear where your line goes, find it without being handed it, and stay on it while the tune pulls at you. Blend teaches that on tunes you already know and on lines written for the job, with real notation and a mic that grades every note.
No account to start. Sing the first stage in this browser, and make an account when there are stars worth keeping.
Hear what you'll be singing
A scale, and the same scale a third above it. Solo either line, then play both.
The upper line is the scale; the lower one is the same scale starting on its third.
Lessons
Learn every way two voices fit together.
There are 84 lessons, and each one is built on a single idea: thirds, sixths, fourths and fifths, lines that lean toward the chord, counterlines that move against the tune, and canons that chase it. Help is there whenever you want it, and it withdraws as you stop needing it. You can retry a clip as often as you like.
Perform
You get one take, and the difficulty picks itself.
A run draws a clip and a way of harmonizing at random, then measures how hard that pairing really is. Sing it cleanly and the next one is harder. Scrape through and it holds where it is. Fall apart and it backs off and costs you a heart. You start with five hearts, and the run carries on until they run out or you decide to stop.
What is here
Lessons
84
Across 23 concepts, with a checkpoint closing every stage
Clips
346
46 of them songs you know, sung with their words: Amazing Grace, Scarborough Fair, Yankee Doodle
Ways of harmonizing
11
From a drone to a canon
You sing it
Naming an interval you've just heard is recognition. Producing it with your own voice, against another line, is the skill, and it's the only thing here that counts as an answer.
Graded note by note
The mic follows your pitch through the clip and marks each note on the staff as you land it. Then it measures how far out of tune the whole take sat. Twenty cents off is free, and fifty-five costs you.
Difficulty is measured, not guessed
Every clip is scored on how it moves, how its rhythm divides, how long it is, and what the chords underneath are doing. Nothing here is hard because someone labeled it hard.
Free to start
The first 3 stages are free, and so is a scored run every day. Pro opens the rest of the journey and unlimited runs for $9 a month, or $60 a year with the first 7 days free.