Radiohead’s Reissue of “OK Computer” Has a Hidden Treasure

To celebrate the 20th anniversary of OK Computer, Radiohead has released a £100 special edition box of the record—with a hidden treat. As well as an art book and notes from Thom Yorke, the commemorative edition comes with a C90 cassette—on which is a collection of demos and two minutes of “a bizarre high-pitched frequency.” That sound has been recognized as the ZX Spectrum (an ’80s-era British computer) and devoted Radiohead and tech fans have figured out the puzzle. “Running those EQ’d files through a ZX Spectrum emulator, the software pops up with the names of all the band members, dating the software back to the 19th December 1996,” explains Engadget. Find out more about this hidden treasure there.