Which logical fallacy is used in the text?
The thing that makes Carson stand out as a remarkable cellist is that he's a marvelous musician who plays the cello splendidly.

 - circular reasoning: an argument that supports a claim with the claim itself
 - bandwagon fallacy: the assumption that the popular choice is automatically correct
 - ad hominem: an attack against the person making the argument, rather than the argument itself
The text argues that Carson is a remarkable cellist because he plays the cello well. However, the "evidence" is just a restatement of the claim itself. This illustrates a type of logical fallacy known as circular reasoning.