Loads of warm ups and talk about the technique of singing. Using your resonators and such. The lessons are brilliant - I sing the way I do because of years of roaring my head off to compete with a deafening drummer over a shitty PA, and they're really helping me get more control over my voice. IMO I sound WAY better since starting lessons (in a group Sept 2019 until lockdown, then 1:1 since Sept 2020)