Are you curious about making music on your computer, but not sure where to start? Have you already started to explore the world of computer music, but you're curious about expanding your suite of creative tools? Do you want to do all of this without breaking the bank? No matter whether you run Linux, Windows, or Mac OS X, there is a full range of free and open source musical composition tools available to help you explore and expand your musical ideas. This talk is your guided tour of the kinds of software available, specific programs and frameworks to try out, and how to get it all working together to make beautiful music, for whatever your definition of beautiful.