Advice for a deep and flat voice. How can I improve?
This is tricky to answer without hearing you as there could be several different causes of a ‘flat’ voice.
Check the tongue and jaw position first. If a singer is singing with the feeling of a ‘yawn’ then the tongue will be pulled back and down and the jaw opened wide. This can deepen the voice but it damps down the brighter colours and can also cause the singer to sing flat.
Use Exercises 4 and 5 in the This Is A Voice book to bring the tongue forward. Then practise singing on an EE vowel to raise the tongue, and sing with the jaw less open