An important aspect of bass lines in electronica is continuous parameter changes to a monophonic voice. "accelerate" is a natural canned solution Tidal offers for continuously changing the frequency of a sample[1]. @bgold describes a completely generalsolution[1] (that is, it can vary any parameter, not just pitch -- important if you want that dubstep wah-wah sound) , but it requires some SC hacking.
One of my dreams is to be able to write, e.g.,
d1 $f s "theremin" # freq "200 200 300 300"
to cause the frequency to be stable at 200 Hz for the first quarter, rise from 200 to 300 over the second quarter, stable at 300 for the third quarter, and then fall back from 300 to 200 over the fourth quarter.
Or barring that,
d1 $f s "theremin"
# freq "200 300"
# transitionSpeedInSeconds "0 0.1"
so that the 200 Hz frequency would take effect immediately, while the 300 Hz frequency would be gradually slid into over the course of 0.1 seconds.