Apple Loops contain information used to automatically time-stretch and transpose the loop so it not only plays at the correct tempo but also plays at the correct pitch for the song you are working on.
All tracks listed in the Arrange window play through channels.
To create a new track and automatically assign it to a new channel, choose Track > Create With Next Instrument (Ctrl-Shift-Return).
To loop an Object in the Arrange window, select it and enable the Region Parameter box's Loop check box, or drag the upper right corner of the Object until it has looped as many times as you need.
The Loop Browser has categories that allow you to quickly find any indexed Apple Loop.
To index a collection of Apple Loops, drag them from the Finder window and drop them onto the Loop Browser.
The Loop Browser allows you to audition Apple Loops as your song plays.
To add an Apple Loop to your song, drag it from the Loop Browser onto an Arrange window track.
Green Apple Loops can be added to empty Audio Instrument tracks. When you add a green Apple Loop to an Audio Instrument track, Logic automatically loads a software instrument and all the effects needed to reproduce the loop, and also adds a MIDI Region to the track to play the Audio Instrument.
