Checked illegal numbers & illegal primes:
https://en.wikipedia.org/wiki/Illegal_number
https://en.wikipedia.org/wiki/Illegal_prime
The pi lives forever
http://sprott.physics.wisc.edu/pickover/pimatrix.html
and Then
http://sprott.physics.wisc.edu/pickover/trans.html
which got me into:
https://duckduckgo.com/?q=how+to+sequence+rhythms%3F&t=lm
and
https://duckduckgo.com/?q=how+to+sequence+time%3F&t=lm