Apple Logic Pro 9 - Manual (Page 262)

The Arrange (and Mixer) channel strips deal with audio and instrument (software or MIDI)
tracks shown in the Arrange area, plus auxiliary (aux) and output channel strips. Each
track in the Arrange window is represented and controlled by a channel strip. Put another
way, the arrange tracks are routed to specific channel strips:
• Audio channel strips control the playback and recording of audio signals on audio
tracks.
• Instrument channel strips allow you to use and control software instruments.
• External MIDI channel strips control external MIDI tracks.
Note: Mixer channel strips are generated automatically when you create new audio,
instrument, or external MIDI tracks in the Arrange window.
The Arrange channel strips, shown at the bottom of the Inspector, display the audio or
instrument channel strip of the selected track on the left side, and the primary (first)
destination for this channel strip on the right side.
The destination will be either:
• An output channel strip, which represents the physical audio outputs of your audio
interface
262 Chapter 10 Working with Instruments and Effects