Memorizing a song is an interesting process for me. I have to memorize the playing of it on the guitar, the singing of it, and the words themselves. And that bit about the impact of stress is 100% anecdotally true. I've played a song from memory a 100 times but ramp up the stress level and there go the words...

I've found the ability to sing and play guitar as an interesting counterpoint to the argument against multi-tasking. I'm not sure how my attention would have to constantly be shifting between the different elements to fit within the "the brain can only focus on one thing at a time" argument as I'm familiar with it.

I'd love it if you could do a piece on that, multi-tasking. If you already have, please point me in that direction.

As always, nice job, Alex!