I cannot find any proper reason for coupling Beethoven 1st piano concerto with Mahler 5th Symphony. Seriously, it was quite dumb. At least Philharmonia didn’t program any 6 minutes overture that would had introduced a 7 minutes extra delay to place the piano on stage after it. Rant is over. Well, not so over because Beethoven concerto performance was problematic. It was not a technical problem from orchestra, pianist or conductor.