I was using StumbleUpon earlier and I happened to stumble upon this wonderful little music player.
At Ghostly Discovery, it will prompt you to adjust three sliders. Slide between Mood and Neutral, Digital and Organic, and Faster and Slower then click discover at the bottom. Once you hit discover it will redirect you into a music player playing music that best fits into where you left the three sliders at! This device is great for finding new bands and new sounds. Give it a whirl.
Here’s what the music player looks like: