We all have some level of natural ability when it comes to singing. One person may have an amazing sounding voice but can not hit one note right. Another, the opposite.
Things such as volume(projection), breath control, diction, range, note distinction and tonal quality can vary drastically from individual to individual.
I draw heavily on methods introduced in the early 1990s which teaches one to sing using their body energy. With this I discovered in a very short period of time that one could acquire volume and range most would not believe to be possible. I now have a range of 3 and a half octaves as a result.
I have various vocal students who are invited regularly to perform at functions within their ethnic communities and school events. As mentioned on my home page, one has already gone pro!