From my indie action platformer horror game Skye the Streamertail.

This is a selection of variations on what will be a dynamic music area, growing in intensity as you approach the machine at the end of Doug the Dog's Organic Meats and Pet Recycling Center.

Here's the music for the resulting final fight: https://www.weasyl.com/submission/104172

Image source: http://en.wikipedia.org/wiki/File:Red-billed\_Streamertail\_male\_RWD4.jpg