Thanks for the link-tip, that page is great! I don't know how long I spent trying to mix the perfect rain, but it was totally worth every second. You had me on "rain in a tent", I more or less grew up in one. The realism is astounding.
And now please excuse me, I have a drone track to compose :p
Glad you enjoyed it man :) Talking about drone tracks - here's a pretty damn awesome album that fits well with the topic in mind (it's not drone exactly, but ambient, atmospheric, and it seeps into your bones!)
https://dreamcatalogue.bandcamp.com/album/rain-temple