I used to hear to Hucci alot back in the day because most of his songs would hover around 60-70 BPM, I'd gather it was having a similar effect.

I use Erik Satie a lot (https://www.youtube.com/watch?v=5pyhBJzuixM). Also ASMR videos of mechanical keyboards (https://www.youtube.com/watch?v=_zq5blZL1P4). Wonder what a light with some randomness would do.

You could hook up some physiological monitors and try all kinds of light patterns.

Try Endel! Works great for this type of stuff IMO.

Does seem good. I laid it on top of some typing sounds, and it's a bit elevator muzak but that might be why it works.

Nice idea, but sound distracts me very much, I just wanted to suggest a package deal: blinking led with a pair of noise canceling earbuds :)

It does, but the blinking was better in my case.

I used to do beats high to low, instrumental music basically.

; )

brain.fm really seems to help me out, when I remember to use it!