Sooooo, I may have answered my own question. I think the song in that documentary is an early version of Bull Black Nova. They recorded most of that record at the same studio at the same time. The documentary lists the song name as “Calm Down”, which is a lyric in the final version of BBN. I’m not a mega fan like everyone here, so perhaps this was a “duh!” to most of you. I was just was hoping to find a quick answer. I own about 3 Wilco discs and my fav is probably A Ghost is Born. But seeing most of the band up close in this documentary has made me want to revisit those and try some others on that I never listened to in full (like “Wilco” or anything since). You guys love this band like I love Pearl Jam, sonInget it. - I enjoyed perusing the site in the last 18 hours or so. I’ll check in periodically if I can for more insights. Peace.