These days, he said, he thought more about getting older than about his birth.
That led him to play Joni Mitchell's greatest song, "Both Sides Now," with its lyrics about being older and wiser:
"I've looked at life from both sides now,
From win and lose, and still somehow,
It's life's illusions I recall,
I really don't know life at all."
As Glenn Gould had done with Bach's "Goldberg Variations," Mitchell had recorded "Both Sides Now" many years apart,
first in 1969 and then in an excruciatingly haunting slow version in 2000.
He played the latter. "It's interesting how people age," he noted.
Some people, he added, don't age well even when they are young. I asked who he had in mind.
"John Mayer is one of the best guitar players who's ever lived, and I'm just afraid he's blowing it big time," Jobs replied.