Apple Logic Pro X - Manual (Page 147)

Chapter 6 Work with projects 147
Set the project key and scale
Each project has a key, which defines the central note to which the other notes relate. By default,
new projects are in the key of C major. You can choose a new key when you create a project, and
change it later while you’re working. When you add Apple Loops to your project, they match the
key of the project.
When Show Advanced Tools is selected in the Advanced preferences pane, you can also add
key signature changes in a project. Key signature changes only affect the display of MIDI notes
in the Score Editor—they do not have an effect on MIDI or Apple Loops playback. For more
information about key signature changes, see
Time and key signatures overview .
Set the project key
m With the playhead at the start of the project, click the icon on the left side of the LCD and choose
Beats & Project, click the key, then choose a key from the pop-up menu.
m In the Score Editor, double-click a staff between the clef and time signature, then choose a key in
the Key Signature dialog. You can also drag the key signature from the Part box to the beginning
of the project.
m Click the Create Key Signature button in the Signature List.
When you change the project’s scale type from major to minor or vice versa, in some cases the
key may change enharmonically (for example, from Db major to C# minor). These changes follow
common practice for printed music, and affect only the key as shown in the menu, not the pitch
of regions in your project.