From the Manufacturer

Logic is the most widely used program of its kind in professional
music production. It elegantly combines composition, notation, and
audio production facilities in one comprehensive product. And now all
of Emagic�s well-regarded virtual instruments and effects are together
in one package.

Logic Pro 6 offers a comprehensive set of music creation tools
featuring rock-solid MIDI timing and synchronization, mixing and
automation with total recall, as well as non-destructive editing of
both audio and MIDI in real time. It also offers superb MIDI timing
with 960 PPQN and sends and receives synchronized MIDI clock, MTC,
MMC, and word clock signals, making it ideal for film, TV, and video
post-production facilities.

Features:

Total-recall mixing and automation
Plug-in processing
Hundreds of customizable key commands
The environment, your onscreen flowchart of the connected MIDI
equipment

Also includes:
Logic Pro: industry-standard software for audio recording, editing,
mixing, and publishing
Synth Collection: previously available separately, Logic Pro 6
includes the ES1, ES2, and EVOC20 software synthesizers that give rich
analog sounds, filtering, and vocoding
Vintage Collection: previously available separately, you get the
unmistakable sounds of the past in the EVB3, EVD6, and EVP88
collection of classic keys
EXS24 mk II: previously available separately, now you can play with
the ultimate software sampler
Space Designer: previously available separately, the Space Designer
lets you add high-end reverb to any mix

1st download full iso of main Logic Pro 6 CD
2nd download Space Designer Library CD
3rd download Logic Demo Songs CD
4th download Logic Documentation CD
5th download XSKey Emulator for OS 9
6th download is a Beta Copy of Logic 6.5.0
7th download is a Logic Pro 6.4.2 update
8th download is an Emagic Software CD that contains Logic 5, Logic 6
for OS9 and Logic 6 Gold, Logic 6 Platinum for OSX.
9th download is the updater to Logic 6.4.3, the last version before
Apple shipped and renamed as Logic Pro 7
10th Update 6.4.3 for OS X version (allows to open Logic 7 files)
11th download XSKey Emulator for OS X
demo video: <https://www.youtube.com/watch?v=FkkIlt0bG3Y>

Compatibility
Architecture: PPC