Untitled (or box set) is a box set compilation of songs released by British musician, songwriter, and producer Steven Wilson under the pseudonym Bass Communion.

It contains many rarities from the last 15 years of Steven's ambient and drone work, especially from vinyl-only editions of Bass Communion albums.

It also features the previously unreleased track "Temporal", recorded in 2012 as a homage to composer Harrison Birtwistle and his 1971 composition "Chronometer" – both pieces are created entirely from the sounds of clocks and other timekeeping devices.

Only 2000 copies were made, with each disc housed in a mini LP cover with inner sleeve, and a 64-page booklet.

(Dirk Serries, Martina Verhoeven, Paul Van Den Berg)