Loop primer
Stick it in a feedback loop to kickstart it. Outputs the constant value if the input is 0, and outputs the input otherwise.
Random walk
takes a trigger input and then outputs a pitch that either goes up or down. Starting note is the midi code for the first note in the sequence, and bias is how strong the correction rubber band is. A bias of 0 will go walkabout, but a bias of 1 won't venture far.
RandHold
Generates random values between -1 and 1, but only once per threshold crossing event (e.g. rising edge).
