You can enable a more musical view in Audacity as follows:
Right-click the Timeline Ruler and select Beats and Measures.
In the Time widget, select beats, or for more subdivisions, beats and 16th.
Enable Snapping, and set the snapping interval to a musical option (eg 1/4, 1/8 or 1/16).
Once you have enabled all of them, your Audacity may look something like this:
Audacity with the timeline ruler set to Beats & Measures, Time Signature Toolbar enabled, snapping to 16th notes, and the Time and Selection toolbars set to beats, bars and ticks. Also visible: The realtime effects sidebar