We were present (by chance) for an organ recital, and it was magnificent. The angels move and play their gold instruments as directed by the organist. The organ was built in 1763-68 and has been overhauled several times since then, the last in 1966-68. It has more than 5,100 pipes, some of which the organist climbed up a ladder to calibrate while we were there.
My husband took some clips with his iPhone of the recital that give more views of the church: