How to choose a Singing Teacher

Always try a lesson before you choose a teacher and even then, you can of course see as many teachers as you find helpful. No loyalty is needed to a teacher, be loyal to your own progress.
Below are some terms used, but not protected or well defined. Always look at what route someone has come to be calling themselves a singing teacher. Teachers and what they teach varies enormously. Every teacher, like every pupil, is different:
Singing teacher, Vocal coach, Voice lessons, Singing Tutor, Singing Coach, Voice Specialist, Classical singing lessons, Opera lessons, Singing classes, Vocal Technique, Audition preparation, Vocal Training, Professional Voice user essentials, Singing lessons for adults or children, Music Teacher.  

Know your Voice thoroghly, so that you can detect any changes

Many aspects may be covered within a singing or speaking voice lesson. Some singing teachers (including me,) have had various trainings covering perceptual analysis, including how to asses if we need to ask someone to see their GP to possibly get referred to a laryngologist (ENT). Many symptoms, or changes in your voice, or how the mechanism of your larynx is functioning can be heard or felt very early on by a teacher or a singer who knows their own voice very well, but must be seen by a medical expert to be diagnosed.

Subjects covered in a voice lesson could include vocal health, techniques, improvisation, aural training, intonation, sight-singing, drama coaching, character development, vocal range including high notes, power, projection, confidential voice, vocal stamina, breathing, performance anxiety, listening, rhythm, confidence, posture, theory, vocal anatomy, musical memory training, body language, speach intonation, speed, rhythm......and much more!

Working With People Who Have Given Up Smoking or are Recovering From Covid