I stopped geeking about microphones and audio interfaces for a second and got dragged into a rabbit hole on harmonics, waves and dissonance. (long story, involving trying to remove room tone/echo so I can record in the bathroom). I dropped in on Adam Neely's channel for a video about of all things, Celine Dion (?) Weird cos I HATE music theory...might sound odd for someone who has created sort-of musical things, but a lot of presentation of music theory is so dry it's like a dessicated husk tumbleweeding in the desert. It's like it takes all the fun and emotion out of music - the very lifeblood - and make it chinstrokey and boring. Or maths - and I fucking HATE maths. So I can only take very low doses of music theory before losing the will to live. This lead to the probably the best ever explanation on the harmonic series by Andrew Huang. I kind of knew this, sorta. It's quite hard to grasp and this is amazingly well done how it explains that.