This is a project I've been working on for the past few days and wanted to share it with you guys! Here's a video of it in action. Heres a link to the blog post i made about this witch goes in to detail on this (ill also be posting updates on there when i add on more to it) https://pandaheroblogsite.wordpress.com/2016/10/10/the-stepper-logic-a-cd40106-based-mini-synth-v1/