Range & register pitch 15 min Mezzo-soprano
The Quarterly Range Audit: Measuring What You Actually Have
Most singers have never measured their range properly and instead carry a rough guess from years ago. A twenty-minute audit four times a year gives you a number you can plan around — and it separates real change from day-to-day noise.
Measure four ranges, not one
Record the lowest and highest note you can sing at three different requirements: barely phonated, comfortably sustained for four seconds at medium volume, and reliably projected in a real phrase. A typical untrained singer measures something like G2 to C6 in the first category and C3 to F5 in the third — a two-octave difference between what the voice can touch and what it can use.
The procedure
With a keyboard or a tuner app: start at a comfortable C4. Go down in semitones until the note stops meeting the category requirement, noting each one. Then go up the same way. Say the note names aloud as you check them. Twenty minutes total, with a two-minute rest halfway. Write the numbers down in the same format every time.
Track the useful number
The number worth tracking is the "phrase range" — the notes you can project in a real phrase. It is usually about an octave and a half for developing singers and around two octaves for trained ones. It tends to move by only one or two semitones a year, and that slow movement is normal: chasing a bigger measured range is the most common way singers waste a year.
What changes between audits
Expect the extreme range to move two to four semitones between audits purely from fatigue and hydration, and the phrase range to move a semitone or less. Note anything unusual — a range that shrank, a note that became hard in a new place — and look at that week's load before blaming technique. Ranges shrink before voices get hurt, not after.
Take these away
- Measure three tiers: phonatable, sustainable, projectable.
- Track the phrase range, not the extreme range.
- A shrinking phrase range is an early warning, not a technique problem.
Asked in lessons
How accurate is a phone tuner for this?
Accurate to about a semitone for sustained notes, which is enough for a range audit. For anything finer, or for checking whether a note is sostenuto steady, use a keyboard as the reference instead.
Should I test when I am sick?
No. Illness will show you a range you do not have. Wait a week after symptoms clear, then audit; the comparison will be meaningful again.
My range has not changed in a year. Am I doing something wrong?
Probably not. Range growth is slow and plateau-rich. What changes faster is the quality, ease and consistency of notes you already had — which is why the audit also asks whether those notes got easier.