A remarkable recording of Nirvana—sans bassist Krist Novoselic—playing an acoustic show at Edinburgh’s Southern Bar for a crowd of people of around two dozen individuals in 1991 has surfaced online out of the blue.

As indicated by the Edinburgh News, nearby band The Joyriders had welcomed the band to play at a pledge drive for the city’s Sick Kids hospital, which was occurring at the bar. Not having any desire to cause a scene by posting the band—at that point amidst their transient ascent to superstardom—on the bill, The Joyriders recorded the trio on the bill as, “very, very special American guests.”

Cobain—maybe not ready for the harsh Scottish winter notwithstanding his Washington childhood—was dreadful sick, supposedly lying in a fetal position on the lounge chair in the hours preceding the show. In spite of his condition however, he stayed focused on playing out that night, despite stern medical advice to cancel.

When the trio showed up, the crwd—skeptical of the promised “special guests”— had to a great extent diminished, leaving around two dozen lucky patrons to witness a very hoarse Cobain and Dave Grohl run through “Dumb,” “Polly,” “Jesus Don’t Want Me For a Sunbeam” and Shonen Knife’s “Twist Barbie” (however the sound of this last song has not been salvaged).

You can hear the ragged, but fascinating set below: