The First Sound of Every Session

Every singer is told to warm up. Fewer are told what a warm-up is for, and the research on that is thinner than the confidence of the advice suggests. What is well supported is simpler than the rituals: move your voice from rest to work gradually, starting with sounds that ask little of it.

This lesson gives you the sound to start with. A hum is about as low-effort as phonation gets, and it is the opening move of most warm-ups for a reason.

The exercise is a closed-mouth hum on a short arpeggio, up through the chord and back down. The piano doubles your line so you always have the pitch in your ear. There is no scoring here either, because with the piano doubling your line the app cannot separate the two cleanly. Just hum along.

Notice where the buzz sits. With your lips closed, a hum tends to tingle somewhere around the lips, the nose, or the front of the face. That sensation is useful later, because many teachers use that buzz as a cue for an easy, resonant sound. It is a feeling, not a measurement. Notice, too, how little air it takes. If you feel yourself pushing, ease off. The point of a hum is that it is easy.

If the first key feels too low or too high, that is normal. The keys step upward as you go, and the exercise covers a range wide enough that some of it will sit outside your comfortable zone.

Hum through the whole exercise once, comfortably. That is the lesson. The guide has a fuller sequence for a five-to-ten minute warm-up and covers how long is long enough, which is shorter than most people assume.

The hum belongs in your routine. Most warm-up sequences start with something like it, so if you add only one exercise from the whole course, this is the one to put first in the order.