GarageBand, Logic: Where loops get installed
When you install Apple Loops from GarageBand, Logic Pro/Express, or any Jam Pack, you may notice that your loops don't all reside in the same location. Not only that, loop locations may vary from system to system, depending on what version (or versions) of GarageBand or Logic you've installed....

By creating an aggregate device, you can use more than one audio interface at the same time with audio applications like Logic, Soundtrack Pro, or most other Core Audio-compliant applications. Logic 9 and Soundtrack Pro allow you to use a separate device for input and output, such as using a USB microphone and the built-in output of your...

Although MainStage 2 does not have a loop browser, it is possible to use Apple Loops with Playback. You can also make the loops follow your Concert, Set, or Patch's tempo....
When entering the serial number for any of Apple's Professional Applications, you may receive an alert stating that "The serial number you entered is not valid."...
The behavior of the key commands used to adjust Marquee selection borders to transients in audio regions has been improved in Logic 9.1.2. Here are some tips on the new functionality....