The EP's eight tracks consist entirely of guitar feedback with occasional drum machine. It is dedicated to Sonic Youth fan Jason Knuth, who committed suicide, with proceeds from the record's sales donated to San Francisco Suicide Prevention Hotline. An explanation of the record is found in the liner notes, written by Thurston Moore:
Silver Sessions [was] taken from an evening when SY had to do vocal overdubs for A Thousand Leaves – the band upstairs was hammering out some funky metal overdrive and we couldn't "sing" properly (?!). We decided to fight fire with molten lava and turned every amp we owned on to 10+ and leaned as many guitars and basses we could plug in against them and they roared/howled like airplanes burning over the pacific [sic]. We could only enter the playing room with hands pressed hard against our ears, and even then it was physically stunning. We ran a sick, outmoded beatbox through the P.A. and it blew out horrendous distorted pulsations. Of course, we recorded the whole thing, and a few months later we mixed it down into sections, ultra-processing it to a wholly other "piece". In a way, it's my favorite record of ours – I hope Jason [Knuth, to whom the release is dedicated] digs it. Keep on, keep on, keep on.
AllMusic wrote, "Of the many strange recordings released by Sonic Youth over the course of their long career, few measure up to Silver Session for Jason Knuth", calling it "an interesting addition to their catalog, intended mainly for loyal fans."