Reminds me of Lady Catherine de Bourgh in Pride and Prejudice: "There are few people in England, I suppose, who have more true enjoyment of music than myself, or a better natural taste. If I had ever learnt, I should have been a great proficient". And when it comes down to it, she's just a snob whose only talent is being a snob.
A chap I work with has had a hankering to play the guitar for some time. I think he's had a few mental health issues as well as a tricky home situation (his wife doesn't like 'that noise') so getting on with the task has been slow and he's largely teaching himself as and when he's able. I encourage him by asking how he's getting on and telling him to 'keep at it'.
A fellow colleague, however, constantly dismisses his attempts, outwardly in a joking way but it must hurt the first guy. Says things like, "Don't believe him. He'll never learn". I ask the colleague if he can play a musical instrument or sing and he always says that he can't but, if he started to learn, he'd make better progress than our friend. I know him well enough to tell him to prove it, but he always finds a reason not to. It's a pity because otherwise he's a lovely, supportive colleague. These days, when asking our friend about his progress (I try to make it more of a 'catch-up' on both sides) I try to make conversation when we're in the kitchen or when the other chap is out of the office, so awful do I feel to hear a would-be musician put down in that way.