M-AUDIO Pro Tools Recording Studio User Manual
Page 609

Chapter 29: MIDI Editing
591
To delete a single MIDI note with the Pencil tool:
With the Pencil tool selected, Alt-click (Win-
dows) or Option-click (Mac) the note. The Pen-
cil tool changes to an Eraser when Alt 
(Windows) or Option (Mac) is pressed.
Time Compression/Expansion 
Trimmer Tool Functionality on 
MIDI Regions
The Time Compression/Expansion Trimmer 
tool is useful for matching a MIDI region to the 
length of another region, a tempo grid, or any 
other reference point.
With the Time Compression/Expansion Trim-
mer tool, you can move the MIDI region’s start 
or end point to expand or compress the region, 
scaling the MIDI data accordingly regardless of 
the track’s timebase (ticks or samples).
Using the Time Compression/
Expansion Trimmer Tool in Grid Mode
The Time Compression/Expansion Trimmer 
tool (TCE Trimmer tool) can be used in Grid 
mode to match a region to the tempo of a ses-
sion or a section of a session, or to create “dou-
ble time” or “half time” performances.
To compress or expand MIDI regions in Grid mode:
1
Set the Edit mode to Grid.
2
If necessary, set the MIDI or Instrument track
to Regions view.
3
Select the TCE Trimmer tool.
4
With the TCE Trimmer tool, drag the MIDI re-
gion’s start or end point to compress or expand 
the region to the Grid (for example, by quarter 
notes). A new MIDI region is automatically cre-
ated, and appears both in the playlist and in the 
Region List.
Deleting a note with Pencil tool
Program change events and Sysex events 
can also be deleted by Alt-clicking 
(Windows) or Option-clicking (Mac) them 
with the Pencil tool.
Scaling a MIDI region with the Time 
Compression/Expansion Trimmer tool
before trimming
after trimming
