Nudge Region/Event Length Right by 1/2 SMPTE Frame — Logic Pro keyboard command of the day

  Nudge Region/Event Length Right by 1/2 SMPTE Frame

Make the currently selected event or region longer by adding 1/2 of a SMPTE frame to the right side of the region.

Resize regions in Logic Pro — Apple Support

You can shorten both audio and MIDI regions so that only part of the region plays. You can lengthen MIDI regions to add silence to the beginning or end of the region. In addition, you can resize the common edge of two adjacent regions to control the transition between them and remove overlaps.

Transpose Region/Event -1 Semitone or Nudge Automation down 1 Step ⌥↓ — Logic Pro keyboard command of the day

  Transpose Region/Event –1 Semitone or Nudge Automation down 1 Step ⌥↓

Transposition only occurs with MIDI regions. Automation adjustment works on all automation curves.

Logic Pro transposition overview — Apple Support

Transposition works non-destructively, and transposed MIDI notes return to their original values when the Transposition value is reset to zero (0). For example, starting with a C3 note event in a MIDI region, adding a transposition point with a value of +2 changes the note event to a D3. If you change the transposition point to a different value, the note is transposed by the corresponding amount. When you change the transposition point so that the transposition value is 0, the note returns to a C3. Similarly, if you copy a region to different parts of the project with different transposition values, the notes in the region change by the corresponding amount.

Delete MIDI Events Outside Region Boundaries — Logic Pro keyboard command of the day

  Delete MIDI Events Outside Region Boundaries

Deletes events that are not in the current region. This is confusing to me. If I insert notes outside of a MIDI region the region gets extended to include the new notes. They are not “outside”. If I shrink the region (move back so new notes are not visible) the notes are not in the region. If I extend the region the notes come back.

If I delete events outside of the region boundaries while the region is “shrunk” then the events are deleted.

I am not visualizing a workflow where this would happen.

Delete notes in the Piano Roll Editor in Logic Pro — Apple Support

In Logic Pro, choose Edit > Delete MIDI Events > Outside Region Borders from the Piano Roll Editor menu bar.