text is a tough way to do audio — ⇧ SHIFT — ⌃ CONTROL — ⌥ OPTION — ⌘ COMMAND
Snap Mode: 1/1 Note
Set the Snap to grid mode to a whole note boundary.
Snap to grid in the Piano Roll Editor in Logic Pro — Apple Support
By default, the Snap functionality is relative, so that when you move notes or other items, they retain their relative distance from their original position. You can override relative positioning with the Snap Notes to Absolute Value option.
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 ⌥↓
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
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.
Create Key Signature Change
Change the key signature for the current project.
Create key signature changes in Logic Pro — Apple Support
When Enable Complete Features is selected in Logic Pro > Preferences > Advanced, you can add key signature changes to a project in the Signature List, Signature track, or Score Editor.