Apple Logic (1.1) - Manual (Page 17)

Chapter 2 Getting Started With Logic 17
Tracks and Regions
Logic works on the basis of tracks, much like a multitrack tape machine. You can see
and access these tracks in the Arrange window’s Track List—shown below.
Narrow rectangles known as MIDI Regions or Audio Regions appear in the Arrange
area—horizontally aligned with the tracks listed in the Track List. An Audio Region
represents an underlying audio file. A MIDI Region represents an individual recording,
or take of MIDI data. Each time you record, a MIDI Region or Audio Region will be
created on the selected track.
You can consider the MIDI Region a container for the actual MIDI data. This data can
include—either individually or in combination—note events, control data, program
changes, or even SysEx data for your MIDI tone generators or the integrated tone
generators in Logic. To explain:
• Note data is derived from the notes played on your MIDI keyboard. It includes
information about the time (bar/beat position) the note was played, how long the
note was held and the velocity at which (how fast) the key was struck.
• Controller data (continuous controllers) includes volume and pan position settings
and changes, plus any other controllers that you may use, and that your synthesizer
responds to.
• Program changes allow you to select different sounds (or patches) from your MIDI
synthesizer or module.
• SysEx (short for System Exclusive) is a part of the MIDI language that can be used to
store the entire memory of your MIDI devices, amongst other things.
Note that one of the tracks in the list is always highlighted. A selected MIDI track is
automatically armed for recording—indicated by the red Record Enable button.
Any MIDI input received by Logic, when in record mode, will be recorded to this track.
This recording will then appear as a MIDI Region in the Arrange area.