Make sure you go through the extensive list of styles. Lots of variety there. Also, 'A' part markers are typically less busy than the 'B' markers. If you find a style that has a suitable 'A' part, that may work. You can then freeze the bass and change the markers if you want busier parts for the other instruments.

Keep in mind that each time you press Play, the bass line will generate a new part UNLESS it is frozen.

R