Early work (1979–1991)

At school, Haigh was in a band called Labyrinth playing original material that was influenced by David Bowie and Roxy Music.^[1] In the early 1980s Haigh released a series of experimental ambient albums under the names Robert Haigh and Sema – the most notable being ‘Three Seasons Only’ and ‘Notes From Underground’. He also contributed to several Nurse With Wound projects and formed an industrial avant-funk band called The Truth Club together with Trefor Goronwy, who would go on to join This Heat. In a 1994 feature in The Wire on ambient jungle by Simon Reynolds, Haigh's influences were listed as Pere Ubu, The Pop Group, Can, Faust and Neu! as well as Miles Davis and King Tubby.^[2]

Omni Trio (1992–2004)

In the 1990s, Haigh developed a unique style of what has become known as ‘ambient drum 'n' bass’ and released six EPs and six albums under the name Omni Trio to great acclaim. The Omni Trio sound is notable for its intricate breakbeat patterns, orchestrated production, atmospheric sound palette, sweetly melodic piano vamps, and creative use of sampled soul-diva vocals.^[3] Omni Trio was one of the original drum 'n' bass producers, who first released for Moving Shadow as early as 1993. He produced several anthems in the period now known as "old skool", including "Mystic Stepper (Feel Better)", "Renegade Snares", "Thru the Vibe", and "Living for the Future". All of these featured on his acclaimed first LP, The Deepest Cut Vol 1 (1995), which was released under the title Music For The Next Millennium that same year in the US through Sm:)e Communications.

He followed this up with The Haunted Science in 1996, which included the singles "Trippin' on Broken Beats" and "Nu Birth of Cool". Mainstream trends in dancefloor-oriented drum 'n' bass rapidly diverged from his musical style, and subsequent albums Skeleton Keys (1997), the Detroit techno-influenced Byte Size Life (1999), and Even Angels Cast Shadows (2001) produced no big club hits on the scale of his early singles, but they further cemented his reputation as one of the finest album-oriented musicians in the genre. Indeed, he was the first drum'n'bass artist to produce six full-length artist albums.

Many Omni Trio tracks feature on popular video games: "Renegade Snares" appears in the game Midnight Club 3: DUB Edition and Grand Theft Auto: Liberty City Stories, "First Contact" (from Even Angels Cast Shadows) is featured in Grand Theft Auto 3 and "Secret Life" is featured in the futuristic racing video game Rollcage Stage II.

Following the release of the sixth and final Omni Trio album Rogue Satellite in 2004, Haigh decided to cease recording as Omni Trio.^[4]

Current work (2005–present)

Since Omni Trio, Haigh has released a series of modern classical and minimalist albums under his own name: the post Minimalist From the Air (2006) and Written on Water (2008), and the piano works: Notes and Crossings (2009), Anonymous Lights (2010), Strange and Secret Things (2011), and Darkling Streams (2013).^[5] On his decision to cease recording as Omni Trio he has said: "After Even Angels Cast Shadows and especially the minimal structures of Rogue Satellite, I felt that perhaps my work was done in this particular area. All along the intention was to do the Omni Trio stuff alongside producing and releasing piano based material under my own name. Then the Omni thing blew up much bigger than I had anticipated. But throughout the '90s I also kept writing piano and minimal themes. By the early 2000s the time seemed right to put the emphasis on developing this material."^[6]

In 2014, German label VOD released the compilation album Cold Pieces. This is a companion collection to 2012's Time Will Say Nothing box set. These two compilations represent Haigh's earliest solo output – covering most of the eighties (1982 to 1989.) Where Time Will Say Nothing focused on Haigh's darker and more industrial period, Cold Pieces represents the evolution into more piano based experimentation.^[7]

In January 2015, Haigh released an 18 track collection of piano compositions called The Silence Of Ghosts. Much of the material on The Silence of Ghosts is developed from piano improvisation. In a recent interview he states: "Most of my compositions start from freeform improvisation at the piano. Later I revisit the more compelling themes and from there, structures start to emerge. I never use formal notation just the odd rough diagrams and written reminders."^[8]

As Sema

As Robert Haigh

As Omni Trio

with Truth Club/Fote

• Sleight/Looking for Lost Toy 7" (Le Rey, 1980)
• Perfect Sense 12" (Le Rey, 1981)
• Shaking the House 12" (Le Rey, 1981)

with Nurse With Wound

• The Sylvie and Babs Hi-Fi Companion (L.A.Y.L.A.H., 1985)
• Spiral Insana (Torso, 1986)
• A Sucked Orange (United Dairies, 1989)