Edit Menu: Move Cursor
From Audacity Manual
To Selection Start
When there is a selection, moves the cursor to the start of the selection and removes the selection.
Cursor moved to the start of the previously selected region with the selection removed.
To Selection End
When there is a selection, moves the cursor to the end of the selection and removes the selection.
Cursor moved to the end of the previously selected region with the selection removed.
To Track Start J
Moves the cursor to the start of the selected track, removing any selection.
The shorter track was the one selected, so the cursor is moved to the 38 second mark at the beginning of that track with the selection removed.
To Track End K
Moves the cursor to the end of the selected track, removing any selection.
Operating on the same track selection as above, the cursor is moved to the 1:28 mark at the end of the shorter selected track with the selection removed.