Ccmixter

Okay kiddo, ccmixter is a website where people can upload music tracks and sounds that they made themselves, and then other people can take those sounds and mix them together to make their own songs. It's kind of like a big musical playground where you can use other people's toys to create something new and cool. But the best part is that everyone who puts their sounds on ccmixter is okay with other people using them, so it's a big community of musicians helping each other make music.