On Friday, December 5th, three-quarters of Sonic Youth reunited for a special performance.

The event was officially billed as a duo event featuring the band’s Thurston Moore and Lee Ranaldo — part of a run of intimate shows from Moore at The Stone in New York. But during Friday night’s show, the pair brought out special guest Steve Shelley, and the trio proceeded to play a long, improvised noise set.

Clips of the performance are available online, showing the musicians jamming on a droning, distorted improvisation, which escalates from a low-simmering, brooding sound to a thrashing climax of guitars and cymbals. Watch fan-captured footage below.

Meanwhile, Moore’s other performances at The Stone were equally intriguing, with a number of rotating guests, including Fred Frith, Wobbly, and others. This past September, he released his latest solo album, Flow Critical Lucidity, and last year he published the autobiography, Sonic Life: A Memoir.