Apple Logic Pro 8 - Manual (Page 397)

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Editing MIDI Events in the
Piano Roll Editor
The Piano Roll Editor shows the note events of a MIDI region
as horizontal rectangles. This resembles the holes cut in paper
pianola rolls.
The Piano Roll Editor can display the MIDI note events of one MIDI region, or all MIDI
regions in a folder or project, if desired (see “
Displaying and Editing Multiple MIDI
Regions ” on page 399). You will generally work on one region at a time in the Piano
Roll Editor, however.
Learning the Piano Roll Editor Interface
MIDI note events are represented by horizontal rectangles, aligned on a grid of
horizontal and vertical lines.
 The horizontal placement of note events indicates their temporal (bar, beat, and sub-
beat) positioning within the region, and project.
MIDI note event