Watch Kenneth Bozeman rebuild three singers' top notes in real time using tonguey vowels, affect and buzz-tracking — classical and musical theatre.

This is Bozeman's acoustic pedagogy applied live. Working with three singers on classical and musical theatre repertoire — a high treble voice on German rep, a baritone on "Where'er You Walk," and a musical theatre singer on "It All Fades Away" — he coaches active EE modification with an exaggerated "tonguey" tongue dorsum and lips out of the way, teaches skepticism, disgust and "I want my mommy" as tuning affects, and has singers track auditory roughness from buzzy low to creamy high. You'll hear open, closed and whoop timbre turn over note by note, plus the nose crunch, sternal-notch check and the brightest-back/darkest-front reversal. Ends with a teacher Q&A on choosing affects that fit the character.