Here's a fun piece of trivia: The reason Philip knows his baking was caused by bells is that Clarence attempted to achieve that very same effect by recreating the sound of bells in Philip's mind.

He heard the mind bells all right, but apparently the mansion decided to trademark and monopolise its mindfuck jingle, so the corresponding effects remained missing.

It was a sad day for Clarence then... and it's a wonderful moment for him now.

Philip... well, the first bell switch got a chuckle out of him, but it's been exchanged for a frown by now, because that's just cruel.

He waits until the chorus is over to see whether the on or off switch prevails.