"Talent" is subjective. You have some who are extremely precise on the instrument they play, but there may not be any life to their performance. And then someone who's not as technically proficient but has that certain something that grabs your ear and doesn't let go.
But I would argue that you have to at least have a baseline proficiency in what you play, be it a guitar, piano or a voice to at least have a chance of grabbing that person's attention.
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