Computer Music

Audio Recorder is a free program that lets you record with your Mac from any input device directly to AIFF, WAV, MP3, MP4 or AppleLossLess formats.
Download link

Arduino inside a Gameboy DMG for MIDI communication. Shows off example of custom midi -> gameboy cart.

Cakewalk, in collaboration with Roland, has introduced SONAR V-Studio 700, the flagship product in its “next generation” V-Studio line of Cakewalk branded hardware and software solutions. 
SONAR V-Studio 700 includes:

SONAR 8 Producer + the full version of Rapture
The VS-700C V-Studio Console
The VS-700R V-Studio I/O
The Integrated Roland Fantom VS hardware synthesizer
Direct control of EDIROL video hardware such [...]

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This video introduces the new user interface of Pro Tools 8 and provides a brief overview of the Pro Tool’s new features. 
Digidesign has introduced Pro Tools 8 — advanced audio creation and production software, featuring:
 

a new interface;
dozens of new plug-ins;
five new virtual instruments;
new scoring, MIDI, editing, and mixing capabilities;
deeper controller integration; and
improved ease of installation and [...]

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cellsDS is a free programmable grid-based music sequencer for the Nintendo DS.
Description:
cellsDS is six sequencers in one, with each sequencer being controlled by a user definable Lua script. It is the peculiar anti-social stepchild of the Tenori-On and Monome.
Features include:

Dead simple user interface.
Ability to create your own unique sequencer rules using the Lua programming language. [...]

Samplebase has released two new Soundblocks: Bionic Beats and Asian Beat Companion.
Descriptions:

Bionic Beats is a unique collection of gritty, glitchy and mangled synthesized breakbeats created by KiloWatts. Each drum loop is provided with a full mix as well as the individual “stems”, so users can mix and match over 130 kick, snare, hat, and noise [...]

 

 Vocovee Demo [0:50m]: Play Now | Play in Popup | Download

JazzMutant has announced the upcoming release of a new firmware for their Lemur multitouch-screen controller.
The version 2 firmware update offers a host of new object features. Workflow improvements, scripting additions and other features allow the controller to be used with some of the most popular software applications around, with Ableton Live users, in particular, benefiting [...]

I’ve written several times before (tripping the universe, 3d acoustic rendering, interactive 3d holograms) about virtual music worlds - generative 3D ambient worlds, where your exploration and interaction changes the music you hear. 
Visual Space Music is an example of that futuristic music experience I’ve been talking about.
It’s “a musical instrument, a unique space-based arrangement tool, [...]