This Node.js module isn't connected to the soundrain.org website, it was solely created for my personal use - but figured since I'm awesome, I'll share it.
npm install soundrain
SoundRain is really easy to setup. Create a folder in your app directory which will be used to download songs into. In this example, I've used
SoundRain = ;var Song = "" './mp3';Song;
Use responsibly and respect SoundCloud and the artists which use it.