Before TAOCP came The Art of the Organ-Builder

https://en.wikipedia.org/wiki/Dom_B%C3%A9dos_de_Celles?wprov...

The art of computer programming is not Donald Knuth's only art to master...

Actually vol. 4b of TAOCP has a (combinatorial) exercise about the possible configuration settings of DK's private organ; I think I saw it near page 300 or so.