Arranging : Time, Tempo, Meter, Key, and Chords : Tempo : Tempo Events

Tempo Events
Tempo events can be assigned to the Song Start Marker to replace the default tempo (of 120 BPM), and they can be inserted anywhere else within the session to change tempo.
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In Manual Tempo mode, the Tempo track is ignored and the session plays at the tempo defined in the Transport window, See Using Manual Tempo Mode.
Current Tempo
As tempo events are encountered during playback, the session’s current tempo is displayed in the Transport window.