Now that I'm a full-time designer, I spend much less of my free time doing anything design-related. In fact, I tend to squander the majority of my free time watching South Park and mindlessly browsing Reddit.
Lately, I've managed to stay somewhat productive with audio experimentation— despite having a very tentative understanding of music theory:
Here's a track from a couple years ago. My musically-talented friend once said he liked it, which was really all the encouragement I needed: