honestly, i think it all depends. some people do things natrually, or suck at it. some people find it incredibly hard to sing on key, and other people arent good with like, intstrument combo's. it all varies on the person. and like, the skills learned as a child for sure. if you never listen to music growing up, your ear wont be as atuned to what sounds good as someone who has been listening for a long time. personally, and it also depends on how much pitch change your doing in your mcing. are you gonna sing your lyrics more, or just say them. depends on what people are doing in my opinion. different strokes for different folks.