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.

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.

MusE is a MIDI/Audio sequencer with recording and editing capabilities written originally by Werner Schweer, and now developed and maintained by the MusE development team. MusE aims to be a complete multi-track virtual studio for Linux. It is published under the GNU General Public License.

ocenaudio is a cross-platform, easy to use, fast and functional audio editor. It is ideal for people who need to edit and analyze audio files without complication. ocenaudio also has powerful features that will satisfy more advanced users including VST plugin support.

guitarix is a virtual guitar amplifier for Linux running on Jack Audio Connection Kit. It is free as in speech and free as in beer. The available source code allows you to build it on other UNIX-like systems too, namely BSD and MacOSX.
guitarix takes the signal from your guitar as any real amp would do: as a mono-signal from your sound card. The input is processed by a main amp and a rack-section. Both can be routed separately and deliver a processed stereo-signal via Jack. You may fill the rack with effects from more than 25 built-in modules from a simple noise gate to brain-slashing modulation f/x stuff like flanger, phaser or auto-wah.

Wavosaur is a cool free sound editor, audio editor, wav editor software for editing, processing and recording sounds, wav and mp3 files. Wavosaur has all the features necessary in order to edit audio (cut, copy, paste, etc.) produce music loops, analyze, record, and batch convert.
Wavosaur supports VST plugins, ASIO driver, multichannel wav files, real time effect processing.
The program has no installer and doesn’t write in the registry. Use it as a free mp3 editor, for mastering, sound design. The Wavosaur freeware audio editor works on Windows 98, Windows XP and Windows Vista.

Produce music with your computer by creating melodies and beats, synthesizing and mixing sounds, arranging samples and much more. Playback instruments, samples and plugins with a typing or MIDI keyboard in a user-friendly and modern interface. Bundled with ready-to-use content from an assortment of instrument and effect plugins, presets and samples to VST and SoundFont support.

Grab yourself a nice audio interface. Plug in a microphone or a keyboard. Import audio or MIDI from your hard drive or the Freesound database. Cut, move, stretch, copy, paste, delete, align, trim, crossfade, rename, snapshot, zoom, transpose, quantize, swing, drag, drop. All with unlimited undo/redo. All in the same window.
Mix, mute, solo, fader, automate, EQ, dynamics, insert, send, pre-fader, post-fader, sync, monitor, isolate. Floating point fidelity, the most flexible mixer architecture in the industry, hundreds of plugins and external control surfaces.

ardour.org
community.ardour.org/download
Plugins
en.wikipedia.org/wiki/Ardour_(software)
Audacity is a popular freeware multi-track audio editor and recorder. (Recommended)

audacityteam.org
Download
FAQ
Documentation
Tutorials
Tips
Beginner’s Resource Guide
Wikipedia
www.darkaudacity.com/ (Themed)
Index of effects, generators and analyzers
github.com/Sneeds-Feed-and-Seed/sneedacity