The CMOS Orchestra > Synth > SSS-Super Simple Sequencer
SSS-Super Simple Sequencer
The Hackadays series by Elliot Williams are a gold mine:
Logic Noise: Sequencing in Silicon
This is a super simple 8 steps sequencer based on the Baby 10 featuring two 4017 ICs.
Here is my breadboard rendition of it gating the power of a 4069/40106 based oscillator: