Using d1 $ fast (segment 1 $ (cT 1 "myfast")) I would expect that the controller input would be sampled once at the beginning of every cycle.
The speed of the pattern changes immediately instead of at the beginning of a cycle. I may not understand the principle how this works if the speed is already "fastened". Would it then be evaluated at the fastened speed or at some intrinsic fundamental ground speed, i.e., 1?
How can I achieve that the controller input is evaluated only at the beginning of a cycle?