FBM Episode 101: Simon Crab profile
One of the tools for music making that Simon Crab uses is Supercollider . It is an audio programming language, with potential applications that include real-time interaction, installations, electroacoustic pieces, generative music, and audio visuals. Supercolider is free, cross-platform GPL software. That means it is free to download, run and share and examine or modify the source code. Supercollider runs on Max OSX, Windows, and GNU/Linux. You can also acquire the Supercollider book to learn how to use.