Never mind Friedrich Mandl found her mathematical abilities useful in technical discussions.
Actually, composer and concert pianist George Antheil was familiar with multiplexed control of pianolas through punched hole coding on a paper roll. He suggested the scheme, which was also used for control of various mechanical equipment (looms), and served as a forerunner to IBM’s use of stacked, punched, paper cards for programming of digital computers.
LOL, the pianola control was probably the forerunner of those funny rolls of paper tape with the holes punched in them as a mainframe backup!