For those of you who are reasonably good at something, be it music or dancing or juggling etc. and been infuriated by having hours upon days upon years of practice and experience dismissed by other people with a shrug and a "Wow, I wish I were as talented as you." it turns out you may both be right.
David Shenk is tracking the writing of his new book The Genius In All of Us: Nature, Nurture and the New Science of Talent and Giftedness in his blog. This particular post has a collection of articles and research concerning musical "talent" in people throughout their lives. There are papers about infants showing recognition of melody and song in other people as early as a year but that no amount of musical ability will last past the age of 7 without some sort of training and encouragement.
Lots of interesting research into the discussion between nature and nurture of "talented" people.