I also play the piano, and can make people believe for about 20 minutes that I'm really good at it. After that, I just replay my tiny repertoire.
I don't really have a favourite author, but the closests would be Scott Fitzgerald and/or Thomas Mann. Hermann Hesse, Knut Hamsum, Nietzsche are good reads. Mauriac is dreary, wouldn't read him again.
I'm rather illiterate in (nowadays) movies and music, I feel unable to keep up with the pace of new stuff coming and going. I prefer what's endured the test of time, so to speak.
What's behind each major event, and why the truth is so often hidden.
It's a vain exercise, I must admit: the most I've achieved is to "peel" a layer of lies here and there, only to find more lies underneath. Thought, or mere entertainment?