Thanks derbydave.
The spokes seem in good condition; they all sound alike when tapped. When it comes to adjusting spokes and truing rims, I definitely don't know what I'm doing. So... no.
I've ordered a chain alignment tool. It should help me understand what's going on. In the meantime, I'll attempt to check alignment with some string.
I think my wheels are parallel but not aligned.
But maybe I think too much.