In the above search box, search the DT by entering any of the below
@work, @labor, @railroad, @logger, @farmer, @cowboy,
or a combination using @work or @labor & any of the others, that will bring you up plenty.
You didn't say if you wanted songs about or/and songs used while working (work songs), there's a difference if you're looking for one & not the other.
Good Luck
Barry