Weeks 7-8 · dynamics · two-take loud-vs-soft on one pitch
Sing the same note loud, then soft. Don’t let the pitch move.
The rule
pass: ≥ 6 dB volume gap · pitch holds
Two channels. Up top, the volume bars — the loud take must clear the soft take by ≥ 6 dB. Below, the pitch trace — the emerald line stays flat through both takes. The grey trace is the failure mode: pitch creeps up the moment the volume jumps. Both must be true to pass.
Hear it first
Three reference clips. A clean contrast — same note, dramatically different volume, you can tell it’s identical pitch. A “cheating” version where loud means a different (usually higher) note. And a soft take that drops into fry or breath — also a fail. We want loud-and-pitched vs. soft-and-pitched.
What’s happening.Volume comes mostly from subglottal pressure; pitch comes from fold-tension and length. Beginners can’t separate them — louder feels like “more” in every way, so the pitch rides up. The rest of singing is essentially the long-form version of this skill: making one parameter change while everything else stays still.
Why 6 dB, why two takes. 6 dB is the threshold at which the loud-soft contrast reads as a real musical gesture — a meaningful piano vs. mezzoforte. Two distinct takes with silence between is easier than a continuous swell at first; we drop the messa-di-voce smoothness requirement and isolate the decoupling skill.
Why this is the bridge. Once you can do this in two takes, swell-decrescendo glues the takes into one smooth gesture, and dynamics-vowel-color adds the third axis (vowel quality). Get the pitch-volume decoupling clean here, on isolated takes, before chaining them.
Session ahead
5 trials · loud 3 s, soft 3 s on the same pitch · gap ≥ 6 dB · hit 4 to pass.