Arranging : Time, Tempo, Meter, Key, and Chords : Chord Symbols : Chord Symbols Ruler

Chord Symbols Ruler
The Chord Symbols ruler lets you add, edit, and delete chord symbols. You can use chord symbols to indicate the chord changes in your Pro Tools session.
To view the Chord Symbols ruler, do one of the following:
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Select View > Rulers > Chord Symbols.
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From the Ruler View selector in the Edit window or in a MIDI Editor window, select Chords.
To add a chord symbol:
1 Place the cursor in the Timeline where you want to add a chord symbol.
2 Do one of the following:
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Place the cursor in the timeline, then click the Plus (+) button in the Chords ruler.
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While pressing the Start key (Windows) or Control (Mac), move the cursor into the Chords ruler (where the cursor changes to the Grabber with a “+”) and click at the location where you want to place the chord symbol.
3 In the Chord Change dialog, select the name for the root of the chord, the chord quality, the bass note of the chord, and the chord diagram (chord diagrams are only displayed in the Score Editor).
4 Click OK.
To change a chord symbol:
1 Double-click the Chord Symbol marker in the Chord Symbol ruler.
2 Make changes in the Chord Change dialog.
3 Click OK.
To move a chord symbol:
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To delete a chord symbol, do one of the following:
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Alt-click (Windows) or Option-click (Mac) the Chord Symbol marker in the Chords ruler.
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Make a selection in the Chords ruler that includes the chord symbols you want to delete and choose Edit > Clear or press Delete.