Halloween by Hans Mikelson:

hallown.orc
hallown.sco

You’ll need to download Csound to render these two text files into an audio file. And in case you are wondering what Csound is:

“Csound is an incredibly powerful and versatile software synthesis program. Drawing from a toolkit of over 450 signal processing modules, one can use Csound to model virtually any commercial synthesizer or multi-effects processor. Csound literally transforms a personal computer into a high-end digital audio workstation — an environment in which the worlds of sound-design, acoustic research, digital audio production and computer music composition all join together in the ultimate expressive instrument.” – Dr. Richard Boulanger (source)

In other words, a straight-up hard-core modular computer music language. Csound makes my top three list of favorite synthesizers of all time. For more info, visit Csounds.com.