The founder of IVTOM defines mix three ways - what it feels like, what the muscles do, what the acoustics do - then proves it on two live students.

Plenty of teachers say they teach mix. Dean Kaelin, who founded IVTOM, spends this keynote pinning down what the word actually means. You'll get three definitions: sensory (singing your whole range with no recognizable change of timbre or dynamic contrast), physiological (TA and CT balance, explained with a ten-speed bike analogy and mapped to where bridges fall in male and female voices), and acoustic (moving from first-formant tuning into second). He argues why mix suits every contemporary style, then coaches two live students - an adult retraining out of classical and a fourteen-year-old - adjusting airflow, resistance and vowel until each lands in what he calls perfect mix.