Up the Downstair

Up the Downstair is the second studio album by English progressive rock band Porcupine Tree, first released in June 1993. It was originally intended to be a double album set including the song "Voyage 34", which was instead released as a single in 1992, and other material that ended up on the Staircase Infinities EP (1994). In 2005, it was partially re-recorded, fully re-mixed, remastered and re-released along with the Staircase Infinities EP as a double album. The re-release contains a re-mix by Steven Wilson incorporating newly recorded drums by Gavin Harrison that replace the electronic drums of the original version. Another re-release on double vinyl was pressed on 14 August 2008 on Kscope records. This is identical to the 2005 release, except it is printed on coloured vinyl and the Staircase Infinities disc contains the song "Phantoms".

According to Wilson, Up the Downstair channeled "the Orb and the Future Sound of London, but also Floyd and Ozric Tentacles. If I liked it, I didn't give a fuck."