DigiDesign Pro Tools Reference Manual page 517

Undo Step, Next Step, and Redo Step
Use the Undo Step and Next Step buttons to do
the following:
• Move the step insertion point, by either re-
moving the previous note or by advancing
the insertion point by the Step Increment
value.
• Lengthen and shorten notes that are being
held on the MIDI controller, by adding or
removing Step Increment values. The Step
Increment value can be changed mid-note
to create a note with a hybrid note length.
Use the Redo Step button to sequentially redo
any previously undone steps.
Undo Step When the previous note has been re-
leased from the MIDI keyboard, and the inser-
tion point has moved forward to the next note,
Undo Step will remove the entire last note.
When a note is being held on the MIDI key-
board, Undo Step changes to read "Decrement,"
and removes the last Step Increment length that
was added to the held note.
Next Step (or Increment) When no note is being
held on the MIDI keyboard, Next Step moves
the insertion point by the Step Increment value,
essentially inserting a musical rest.
When a note is being held on the MIDI key-
board, Next Step changes to read "Increment"
and adds the Step Increment value to the held
note, increasing its length by the Step Incre-
ment value.
While the note is being held, the Step Increment
value can be changed, allowing you to create
notes of any musical length.
Redo Step Reinserts the last note that was re-
moved by the Undo Step operation.
The Undo Step, Next Step and Redo Step but-
tons can be set to be triggered by an external
MIDI synth, drum pad, or other controller.
To set Undo Step, Next Step and Redo Step MIDI
triggers:
Choose Event > MIDI > Step Input.
1
Locate the button you want to assign a MIDI
2
event to, and click in the field below the button.
Selecting the Next Step field
Play the MIDI event you wish to use as a trig-
3
ger.
If you use a continuous controller such as
Pitch Bend as a trigger, you should make
certain to use an extreme controller value to
avoid erroneous data input.
Next Step field triggered by pitch bend
Press Enter to confirm the MIDI trigger assign-
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ment.
Chapter 23: MIDI Operations 505