Start making music in the cloud. Audiotool is a powerful online music production studio right in your browser. All crafted with lots of love for the small details.

Ubuntu Studio is a free and open source operating system, and an official flavor of Ubuntu. Ubuntu Studio is the most widely used multimedia orientated GNU/Linux distribution in the world. It comes preinstalled with a selection of the most common free multimedia applications available, and is configured for best performance for the Ubuntu Studio defined workflows: Audio, Graphics, Video, Photography and Publishing.
ubuntustudio.org
Ubuntu Studio Applications
Ubuntu Studio Audio Handbook
ubuntustudiomusic.wordpress.com
wiki.ubuntu.com/UbuntuStudio
en.wikipedia.org/wiki/Ubuntu_Studio
Obi is an open source audio book production tool that produces digital talking books (DTBs) conforming to DAISY 3 (officially, the ANSI/NISO Z39.86), Accessible EPUB 3 & DAISY 2.02 standards.
Obi is easy to learn, highly accessible, and powerful navigable audio book production tool that enables anybody to produce accessible and rich DAISY/EPUB 3 content with minimal amount of training.
Giada is a free, minimal, hardcore audio tool for DJs, live performers and electronic musicians. How does it work? Just pick up your channel, fill it with samples or MIDI events and start the show by using this tiny piece of software as a loop machine, drum machine, sequencer, live sampler or yet as a plugin/effect host. Giada aims to be a compact and portable virtual device for Linux, Mac and Windows for production use and live sets.

Frinika is a free, complete music workstation software for Linux, Windows, Mac OSX and other operating systems running Java. It features a sequencer, soft-synths, real-time effects and audio recording.
