Actually I could do a workshop on Gurage work songs, for transplanting false banana trees. I recorded some of them when I was in the Peace Corps in Ethiopia, back in the Pleistocene, but when I asked my students what they were actually singing they replied, "Sir, they're not singing the right words. They're being very rude!"
Maybe I better stick with traditional sea shanties such as "Wake Up, Susianna," ones that everyone knows