Cabal can now be used to compile the project.

This is a pretty cool little project that I found when I was scanning the internet for audio Haskell projects but it was a bit annoying not being able to compile it easily. Therefore I just cabalized the project in about ten-twenty minutes and now I am sending the results back to you in a pull request.

The one thing that you really should add in once this project is complete is a license. Since this project has no license I might recommend the MIT license.