Get audio and creator gear delivered free with Prime
- Fast, free delivery on millions of items
- Prime Video, Amazon Music and more included
- Member-only deals all year
Rhythm by Code
The third episode in my Teletype series. This time, I will create a simple rhythm machine with a bit of Grids-like density control on the hat. Easy to learn, lots of fun!
Here’s the code with some explanations.
Intitialization Script I
PARAM.SCALE 0 100
M 2000
In plain English:
Set the parameter knob scale to a range between 0 and 100
Set the metronome to 2 seconds (2000 msec)
Metronome Script M
This script executes every 2 seconds
CV 2 V RRND 1 8
CV 3 V RRND 1 8
CV 4 V RRND 1 8
So the metronome generates three random values between integer values between 1 and 8, kind of like octaves. They’re used for dramatic modulation of timbre and the modulation is not related to any clock.
SCRIPT 1
Script 1 is triggered by any clock, but expects 16th notes. So for every trigger, the following code gets executed:
EVERY 4: TR.PULSE 1
EVERY 8: TR.PULSE 2
DEL RRND 20 35: TR.PULSE 3
PROB PARAM: TR.PULSE 4
PROB PARAM: CV 1 V RRND 1 5
EVERY 13: TR.PULSE 1
For every fourth trigger, fire a pulse to trigger 1 – the kick
For every eighth trigger, fire a pulse to trigger 2 – the snare
So these two lines are clock dividers creating a four on the floor.
Wait a few milliseconds. The number of milliseconds is random between 20 and 35. Then, fire trigger 3 – the ‘human’ hat.
The parameter knob can be read with the PARAM keyword. We’ll use it to set a probability between 0 and 100 for firing off Trigger 4.
We’ll use the same probability to send CV to CV output 1, a voltage of 1, 2, 3, 4 or 5 volt (integer values).
Every 13th trigger we’ll fire another kick, creating polyrhythmic variations in the kick pattern.
Products Worth Considering
Logitech MX Brio Ultra HD 4K Webcam, Graphite
Amazon Kindle Paperwhite (12th Generation, 2024), 16 GB, 7-inch Display, Jade
Apple Watch SE 3 GPS 44mm Smartwatch
As an affiliate, we earn on qualifying purchases.
