The beat ruler is displayed along the top of the timeline. This timeline will allow you to place events in reference to the musical time of measures, beats, and ticks (ticks are visible when you zoom in).

This timeline changes only when you change time signature. Tempo changes will not change the beat ruler; this allows events to maintain their size when the tempo is adjusted.

In the sample image, 1.1 represents beat one of measure one, and each ruler mark represents one beat. The scale of the beat ruler varies depending on the zoom level of the timeline.

If you want to view the timeline in a scale other than measures, beats, and ticks, you can use the time ruler.

The Beat Ruler