Editing Leftfield (section)

==== Origins and Early Singles (1989–1992) ====

Around 1989, inspired by [[Afrika Bambaataa]], Neil Barnes began experimenting with electronic music production. The result was "Not Forgotten", released on Outer Rhythm, a subsidiary of [[Rhythm King Records]] — the same label that was home to [[Bomb the Bass]], S'Express and Baby Ford. Barnes described the track as "the sound of 15 years of frustration coming out in one record." ''Mixmag'' applied the term "progressive house" to the record, and it became a significant presence in UK clubs from 1991 onwards.

A contractual dispute with Rhythm King prevented Leftfield from releasing new material under their own name for several years. During this period, Barnes and Daley took on extensive remix work for artists including React 2 Rhythm, [[David Bowie]], D:Ream, Renegade Soundwave, Ultra Naté, and [[Stereo MCs]]. They also worked with Djum Djum, a ragga singer, releasing a single called "Difference" on Outer Rhythm.

To regain independence, Barnes and Daley founded their own label, '''Hard Hands Records''', around 1992. Their first Hard Hands release was "Release the Pressure", featuring [[Earl 16]] on ragga vocals — a deep, bass-driven track that introduced a wider audience to Leftfield's dub-influenced house sound. This was followed by "Song of Life" (1992), a kinetic single woven from interlocking bass, scratched samples, and chanted vocals, which became one of the most-played tracks of the early progressive house era and was later used as the opening track on the landmark [[Sasha (DJ)|Sasha]] and [[John Digweed]] ''Renaissance'' compilation (1994).