10 secrets of good singing

Marianna Lima is a jazz, blues, gospel, pop, and soul singer.
Marianna Lima has toured the world, performed in many countries, participated in many music competitions, and won many Grand Prix and first prizes, totaling twenty.
Marianna Lima is the author of four books "American Dream," "Canada," "Europe in my heart," and "Doctor Music."
The book "Doctor Music" was released in New York in the spring of 2023 and was a great success. It is sold all over the world today: USA, Canada, Asia, Europe, and has aroused great interest among people.
"The History of World Music" a book written by Marianna Lima was released in the USA in July of 2023 and it is currently sold all over the world.
This is Marianna Lima's sixth book.
The book "Ten Secrets of Good Singing" reveals the most important secrets for correct singing and success in singing.