http://fretsonfire.sourceforge.net/
Frets on Fire is a game of musical skill and fast fingers. The aim of the game is to play guitar with the keyboard as accurately as possible. Frets on Fire is open-source and includes: a unique inverted keyboard gameplay style; support for guitar controllers and generic joysticks; a song editor for making your own tunes; the ability to compete with others on the World Charts; hundreds of songs composed by the community; and support for importing Guitar Hero and Guitar Hero II songs.
Introduces new World Charts, an enhanced song-chooser filter, and audio performance and stability fixes. This version is the first release on CNET Download.com.
What's new in this version:
Version 1.3.110 includes concise instructions for building and installing the game; removes runtime SVG support so that all images must be pre-rasterized as PNG graphics now. This also removes the dependency on Amanith, making the game simpler to build and package; Adds textured fretboard strings and bars; and updates the translations. see all new features
They bought their tickets, they knew what they were getting into. I say, let 'em crash.