For over 20 years I have been working in primary schools around London teaching classes of 30 children musicianship through singing. I can remember how I used to think at the start of every day 'Today I won't strain my voice. I'll remember not to shout, not to raise my voice, not to sing too forcefully, not to whisper.' Not to do all the things my various singing teachers told me not to do and to do all the things they told me to do. I would start the day with that resolution