Hello!

Hi, I'm Pete Corey. I'm a software developer and owner of East5th, Inc. I've been working in the software industry since 2008. I've worked in various capacities for various different companies like Amazon, Tapestry Solutions, and Cigital. In 2015 I started working for myself, and these days I find myself largely writing back-end software solutions using Elixir and Node.js.

I enjoy writing about what I know. Everything on this page was written entirely by me without AI assistance. Here's a sampling of some of my recent posts:

AI Gems: Part 1 – Let's make ABSOLUTELY sure this object has this name field.
AI, Codex, Javascript
Apr 13, 2026

How Many Scales Are Modes of Other Scales? – Now that we know there are 4096 possible musical scales, let's explore how many of those scales are modes of other scales.
Elixir, Glorious Voice Leader, Music
Jan 11, 2026

Scales as Multipermutations of 0 and 1 into Twelve Places – The itch to write a property test for the musical scale generator we built last time led to explore how to generate all possible scales.
Elixir, Glorious Voice Leader, Music
Jun 25, 2025