Rafał Blechacz gave a phone interview for Princeton University blog.
Princeton University blog
PUC: If you were not a musician, what profession do you think you would have pursued?
RB: Well, as a child I absolutely loved the organ. I can remember going to the church and just being fascinated with the organ and of course Bach, so I think I would be an organist. As for a profession outside of music maybe a philosopher, but philosophy having to do with music. It would have to be a profession somehow connected to music (.....)