Song by Aphex Twin
"#19" (commonly known by fans as "Stone in Focus"), is a track by the British electronic artist and producer Richard D. James, under the alias of Aphex Twin. It was first released in 1994 exclusively on the vinyl and cassette editions of his second studio album Selected Ambient Works Volume II as the nineteenth track, however it was removed from the CD release due to storage constraints.[1] It was not featured on streaming service versions of the album until 2024.[2] It is the second longest track on the original release of Selected Ambient Works Volume II, and the third longest on the Expanded Edition reissue.[3]