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Pro Tools Reference Guide 346
MIDI Regions Created on Barlines
When recording MIDI, or when manually enter-
ing MIDI notes, the beginning and ending of re-
sulting MIDI regions are constrained to bar
boundaries. This greatly facilitates arranging
MIDI regions in a musically meaningful way, in
whole bar lengths.
The beginning of a recorded MIDI region always
starts on the barline immediately before the first
MIDI note (note on) of the region. Likewise, the
MIDI region ends on the barline immediately
following the last note (note off) of the region.
Nondestructive MIDI Editing
While editing audio regions is usually nonde-
structive, this is generally not the case for MIDI
regions. For instance, if a MIDI region resides in
just one track at a single location, editing for
that region
is destructive. This means that alter-
ing the pitch, duration, or placement of notes in
Notes View permanently alters the region.
However, when editing a MIDI region that ap-
pears elsewhere, in the same track (at another
location or in a different playlist) or in another
track, the editing is nondestructive and creates a
new auto-created region. To go back to the pre-
vious material, drag the original region from the
Region List, or return to a previously saved play-
list.
MIDI Regions and Continuous
Controller Events
Continuous controller events reside in MIDI re-
gions and not in tracks. This means that when
dragging regions that contain controller data
from either a track or the Region List, the con-
troller data is written to the destination track.
Unlike continuous controller events, which rep-
resent nuances that are part of a MIDI perfor-
mance, Mute in Pro Tools is an automation
playlist that actually mutes the MIDI engine.
Mute automation does not correspond to actual
MIDI events and is therefore not exported when
saving as a Standard MIDI File.
Timebase Rulers and
Conductor Rulers
Any or all of the following Timebase rulers can
be displayed at the top of the Edit window:
• Bars:Beats
• Minutes:Seconds
• Time Code (Pro Tools HD and Pro Tools LE
with DV Toolkit 2 only)
• Feet+Frames (Pro Tools HD and Pro Tools
LE with DV Toolkit 2 only)
• Samples
• Time Code 2 (Pro Tools HD and Pro Tools
LE with DV Toolkit 2 only)
One way to safely return to a track’s previ-
ous state is with playlists. Before you edit
notes, trim regions, or rearrange the order of
regions, make a duplicate of the track’s ex-
isting playlist and then edit the duplicate
(see “Playlists” on page 352).
To apply edits to all instances of a MIDI re-
gion, enable Mirrored MIDI Editing mode
(see “Mirrored MIDI Editing” on page 559).
All rulers displayed