Honestly, Sora has to pull himself from thinking too much about it anyway, otherwise he's likely to give himself a headache again. That's certainly been happening a lot more recently. He focuses back in on what Roxas is actually saying.

"Yeah! There were a lot of people, it went really well. And two of my friends won prizes for the songs they wrote and performed! Trucy Wright from System Crash and Ivan Karelin from Flowers Over Bones," he adds in their names just in case Roxas happens to recognize them or be a fan. Though if he was a fan he was probably already aware they'd won.

He hasn't deduced yet that Roxas is also a musician. But to be fair, the two other people he's seen and recognized from his dreams hadn't been, they were spectators.