https://soundiron.com/products/rainsong
Rainsong is a free instrument library for Kontakt, created from a variety of natural rain ambiences and raindrop sound effects, crafted into playable sound-designed synths, pads, atmospheric soundscapes and percussive sfx. It's full of playable muscial elements, as well as useful sonic elements and foley for videogames, animation, film and songwriting. Full Kontakt Required.