According to a Canadian study, about 98.5% of people can be taught how to sing. The 1,5% that can't sing suffer from congenital amusia, where they have difficulty differentiating between different pitches, tones, or rhythms.

If at first, a person sings a note incorrectly, most can quickly notice it and correct themselves. Researchers found it is not how much you practice, but how quickly you can identify and correct your error.

There is a considerable difference between singing in the shower or community choir and singing professionally.

Singing training and practise is about creating vocal freedom where singing seems to come without effort. Most singers need years of practice to develop that kind of freedom.