The TV show "You Asked For It" in 1956 had an episode showing Max
Kortlander and J. Lawrence Cook in a tour of Imperial Industrial Co.
In the video Mr. Cook plays a few bars of the music he's transcribing
to the perforator.  If he was a fluent player it remains a mystery.

You can see this video on the AMICA homepage (be sure to turn off
the music first):  http://www,amica.org/ 

Karl Ellison