How to Start a Note Smoothly: A Guide to Vocal Onsets
The short answer: The beginning of a sung note is called the vocal onset. A balanced onset happens when the exhale and vocal-fold vibration begin in a coordinated way, without a large rush of air or a forceful attack. Practise easy, comfortable vowels and compare what you hear.
Expert source: This article is adapted from a School of Roar guest masterclass with opera singer and breathing educator Barbara Tanze, hosted by Beth and Tom. It is an editorial adaptation, not a verbatim transcript or individual medical advice.
You know the note you want to sing. But when it begins, it either bursts out too strongly or arrives with a little cloud of extra breath. Why is the first instant of a note so tricky?
That first moment is called the vocal onset: the transition from not singing to singing. In her Beth Roars masterclass, Barbara Tanze used airflow feedback to show why this small moment involves a surprisingly sophisticated bit of coordination.
Barbara’s demonstration of note beginnings
During the session, Barbara used airflow feedback to compare abrupt, airy and more coordinated starts. Even Beth and Tom discussed how difficult it can be to translate theoretical knowledge into an actual first note.
What has to happen at the beginning of a note?
Before the sound begins, your breathing system is preparing an exhale. Your vocal folds then need to come together and vibrate in a way that suits the pitch and sound you want.
If the timing and pressure are not well coordinated, the start may feel pushed, abrupt, airy or unstable.
An onset is not only about the throat. The breath and the vocal folds have to agree on when and how the note starts.
Three starts worth listening for
Try singing a comfortable vowel and notice the character of the beginning:
Breathy: You hear a noticeable rush of air before the vowel becomes clear.
Pressed: The note begins with a hard or forceful attack.
Balanced: The sound begins cleanly and comfortably, without an obvious rush or shove.
These descriptions are listening tools, not rigid categories. Different musical styles may deliberately use breathy or more assertive starts for expression.
A gentle onset experiment
Choose an easy middle-range note and a vowel such as “oo” or “ah”. Exhale softly, then allow the vowel to begin without changing your effort dramatically.
Try again, keeping your jaw and neck comfortable. You can alternate between a slightly airy version and a more immediate version to notice the difference, but avoid making a hard attack or repeatedly forcing the folds together.
Record a few attempts. What you hear may be more useful than what you think your muscles are doing.
Why feedback helps
Barbara demonstrated this idea with the Flexiflow, which makes escaping air easier to hear and see. By noticing what happened to the airflow when she began making sound, she could explore whether the vocal onset disturbed the exhale or fitted smoothly into it.
You do not need that particular tool to begin listening more carefully. The deeper lesson is that you can train a smoother start through exploration, rather than telling yourself to “hit” the note harder.
A balanced onset can make the rest of a phrase feel easier, because the voice does not begin by fighting the breath.
Questions singers often ask
What is a breathy onset?
A breathy onset is when you hear air escaping before the sung vowel becomes clear. It can be an intentional expressive choice, though it may not suit every phrase.
Is a firm vocal onset always wrong?
No. Different musical styles call for different attacks and textures. The priority is intentional, comfortable coordination rather than repeatedly forcing an onset that feels harsh.
Keep learning with School of Roar
If your notes begin differently from how you imagine them, feedback can be transformative. School of Roar combines practical learning with guest masterclasses and opportunities to ask Beth questions about your singing.
