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Change articulations in the Piano Roll Editor in Logic Pro for Mac
If articulations have been recorded along with notes and events in a region, an Articulation pop-up menu becomes available in the Piano Roll Editor. If you don’t automatically see the Articulation pop-up menu, you may need to increase the height of the Piano Roll Editor window. You can also use the shortcut menu to change note articulations. To learn more about articulations, see Logic Pro articulation editing overview.

When an articulation has been assigned to a note, the help tag will display the chosen articulation.

You can also change the color of notes by articulation. See Change colors in the Piano Roll Editor in Logic Pro.