Will singing lessons change the sound of my Voice?

I hear this one a lot, the answer is no, unless you want to change your voice (tone) that is! Normally people who ask this question have a classical voice sound in there head and think that this is what happens when you have lessons, that somehow their voice will loose its uniqueness. This is just not the case, a good teacher will add to the palate of colours that you already have (dynamic registration), if you need it that is.

The classical sound comes from singing with a low larynx and this is not the case for pop, where the best place for the larynx is in the middle. This is normally where you speak.

How Long will it be before I can sing well?

The answer to this is the same answer as to ″how long is a piece of string″, who knows. It depends what level you are when you start, what you want to be able to do, and your commitment to working on it.

What key do I sing in?

Strictly speaking it's not a matter of key but where the tessitura of the song lies. This is what you are told when some one is quoting it, but in the real world we all have area's in our voice that we find it easier to sing in,

for example I have a 4 octave range (above average) but I find it most comfortable to sing between C4 down to C3, I feel like I could sing here all day, this is my tessitura area, so any song with the bulk of the melody notes in that area would be for me very easy, even though I can sing in any key.

If you have a more limited range the key is important, if you can't reach the high note in one key you will need to drop the key until you can just hit the high note.