Kenneth Bozeman maps the acoustic registers every singer crosses — and shows you how to let vowel, timbre and sensation migrate instead of fighting them.

Kenneth Bozeman gives voice teachers the acoustic map behind a seamless mix. Using live spectrum software, he demonstrates that the timbre shifts you call register changes happen when harmonics pass through vocal tract resonances — not because the larynx flipped. You'll learn the difference between resonances and formants, why acoustic and laryngeal registers interact, and how transglottal pressure difference is the real bottom line for vocal health. He then hands you working tools: pre-phonatory setup through affect (inner smile, smelling a rose, suppressed laugh), the "toddler complaint" for a rich source buzz, tracking auditory roughness to diagnose mix, undervowel/overvowel tone colors, chiaroscuro whisper, and pharyngeal voice for weak middle registers.