Weeks 5 and 6: through the break

Move on when: Each note from four semitones below the lower edge of the transition you found in chapter 10 to four above it, set one at a time as the target in the pitch studio and landed inside tolerance at conversational volume, in order, with none skipped.

The evidence comes from the pitch studio, which is where this app measures it.

When it does not pass, the blocker is usually this one. Volume, not pitch. A note above the transition that lands only when you sing it louder is being pushed through rather than crossed; halve the volume, slide down into it from a note above, and set it again.

What passing does not prove: That the crossing was smooth, or that it was made on the mechanism you intended. Each note is landed on its own, so a siren through the same notes can still break; nothing here classifies register, and no number scores the absence of a crack.

The app runs this fortnight day by day in The Measured Voice: 12 weeks, a Suede Pro program. Its first week is free, and each day of that week fits inside the free plan's 5 guided minutes.