It was live. But I would've expected that they had a conversation discussing possible topics / questions beforehand (large and established radio station with over 2 million listeners). These awkward pauses would've been spotted then already. Maybe they had, and he was more relaxed and eloquent there, or maybe his schedule didn't allow for a pre-interview meeting.
Even if there wasn't time, he should have practiced interviews before and so been comfortable even if the exact topic is new.
He should always be prepared to talk about his first interest in music. His first time touching a piano. Why he choose piano (which may have been his parents forcing it at first). What other instruments he plays. What is favorite music is. Details about whatever piece is performing now (maybe spoilers on what he is practicing but not yet performing). Ideally he should listen to modern music so he can connect to kids by talking about something popular today (maybe even play a piano arrangement of it).
Those are the basics that he should have an easy time talking about. If he unexpectedly wins an award he didn't expect to be in competition for he might be speechless, but for the above the answers should be easy.
But then he shouldn't have granted an interview in the first place. He should also expect that because he isn't self promoting like that he is soon passed over for piano playing positions (despite how good he may otherwise be) and has to find a non-playing job (teaching is common). His current job requires him to be good at interviews. If he wants to keep this job he needs to get good at it fast - it may already be too late.
Now if he decides giving interviews isn't what he wants to do and thus switching to a different job where he doesn't have to give interviews (and also will not play publicly much) is the right choice I will not fault him for that. It is his choice and his alone.
> His current job requires him to be good at interviews
I see. I had no idea that was a requirement of being a professional pianist. This all read as incredibly pointless with me thinking that interviews were a side thing for a pianist.
Many people fail to understand thair true job. the real job in cases like this is to promote the show. That means interviews or other activities. Talent playing is a requirement of course, but there is plenty of talent around.
> the real job in cases like this is to promote the show
What, the piano show he performs? Why would that be the pianist's job? Wouldn't that be the venue's responsibility?
Edit: I had to look him up. Quote Wikipedia:
> Igor Levit is a Russian-German pianist who focuses on the works of Bach, Beethoven, and Liszt. He is also a professor at the Musikhochschule Hannover.
So it's not like he's taking gigs in dive bars. Do renowned classical musicians typically shoulder the burden of promoting their own performances... through radio interviews?