@voltronic Just finished watching the series and remembered this post. It is an interesting choice. While looking up the history of the song a couple interesting bits came up. It is earliest attributed to a collection of slave songs from 1867 but some sources say it was believed to be a Native American song modified with Christian lyrics. The only tribal attribution was a vague reference to the Hupa nation of northern California. Also an 1880 book about the Fisk Jubilee Singers, interestingly.