SimpleSynth 0.8 (by Pete Yandell)
SimpleSynth is a simple soft synth that takes input from a connected MIDI device and can play instruments from Soundfonts and DLS files including Apple's default General MIDI sound set.

Roland USB MIDI Interface Driver 0.3 (by Pete Yandell)
Roland USB MIDI Interface Driver is a driver I adapted from Apple's source code to support the following MIDI interfaces under OS X:
• Roland S-MPU64
• Roland PC-300
• Roland UM-1
• Roland UM-2

Note that the offical Roland drivers are now available, so you'll probably want to use

Roland USB MIDI Interface Driver 0.3 (by Pete Yandell)
Roland USB MIDI Interface Driver is a driver I adapted from Apple's source code to support the following MIDI interfaces under OS X:
• Roland S-MPU64
• Roland PC-300
• Roland UM-1
• Roland UM-2

Note that the offical Roland drivers are now available, so you'll probably want to use

202 Hack 1.01 (by Defective Records Software)
202 Hack is an application that converts sequence information stored in standard MIDI files into a format compatible with Roland MC-202™ sequences.

SCEditor 1.2.4 (by MRDLab)
Roland SoundCanvas Editor For MacOS X.

Alpha Juno Control 0.9.0 (by Jim Vanaria)
Alpha Juno Contol is a small app for owners of Roland Alpha Juno keyboards.

Apple FireWire Audio Driver Update 1.0.8 (by Apple)
Apple FireWire Audio Driver Update 1.

USB Audio HAL plugin driver 1.3.0 (by propagamma / usb-audio.de)
USB Audio driver, connects USB Audio interfaces to pro audio applications.

Open Tuning 1.5.1 (by Phi Software)
Open Tuning is a Midi utility offering to MIDI and MIDI-fied polyphonic instrument players (such as pianists, guitarists and violinists) the ability to play and explore an unlimited number of virtual tunings without needing to retune their instrument each time.

MOTU USB MIDI Driver & ClockWorks 1.33 (by Mark of the Unicorn)
MOTU USB MIDI Driver & ClockWorks includes USB MIDI Drivers for OSX for use with MOTU USB interfaces including the USB Fastlane, micro lite, express 128, micro express, Express XT and MIDI Timepiece AV.

Emagic Logic Audio Updater 6.4.3 (by Emagic Soft)
Logic Platinum is the centerpiece of the world's premier music composition and audio production system.

Tresor 2.2.2 (by Roland Blaser)
Tresor is a file and folder encryption tool.

Netlinx Diagnostic & Control 0.0.6 (by Domedia)
Software that allows full control of all NetLinx Interfaces and all equipments connected in AXLink, ICSNet, ICSHub on it, and also allows control in future versions of equipments connected to it in IR, RS, or IP.

Microspot X-RIP 100 1.6.4 (by Microspot)
X-RIP 100 is a professional large-format driver that utilises the latest OS X technologies to provide superb quality output on the HP DesignJet 100, 110 and 120 printers.

USB Audio ASIO Driver 2.09f6 (by Propagamma)
USB Audio ASIO Driver allows you to use a laptop as a synthesizer or digital effect-box.

LCedit+ 3.2 (by CDS Advanced Technology)
LCedit+ can be used with LanBox-LC, LCM and LCX.

Apple Graphics Driver Updater 1.0 (by Apple)
The Graphics Driver Update delivers updated graphic drivers for Mac OS X v10.