MIDI Editing : Using the Grabber Tools : Transposing MIDI Notes with Nudge
 
Transposing MIDI Notes with Nudge
You can transpose selected MIDI notes by semi-tonal increments using Plus (+) or Minus (–) on the numeric keypad.
To transpose the selected MIDI notes by semitones:
1. With the Grabber tool, select the MIDI notes you want to transpose.
2. Do one of the following:
*While pressing Control (Mac) or Start (Windows), press Plus (+) on the numeric keypad transpose the selected MIDI notes up by one semitone.
*While pressing Control (Mac) or Start (Windows), press Minus (–) on the numeric keypad transpose the selected MIDI notes down by one semitone.