Sean O'Hagan shaped a distinctive musical identity through his leadership of High Llamas and his recurring contributions to Stereolab, where his roles as multi-instrumentalist, vocalist, composer, and arranger fused ornate 1960s melodies, expansive string orchestrations, and softly pulsing vintage synthesizers into refined vocal textures that left a mark on 1990s indie music and later influenced acts tracing paths from both ensembles. Throughout the 1990s the High Llamas issued recordings that merged Steely Dan-styled soft rock craftsmanship on Gideon Gaye, looping structural designs on Hawaii, and hallucinatory easy-listening textures on Cold and Bouncy. During the same period O'Hagan supplied keyboards and assisted with space-age arrangements for Stereolab while also lending his skills to Super Furry Animals, Kassin, and Paul Weller. Although the High Llamas largely retained O'Hagan's singular blueprint, occasional releases introduced variations, among them the predominantly acoustic Beet, Maize & Corn in 2003 and the dramatically staged Here Come the Rattling Trees in 2016. In 2019 he issued the solo set Radum Calls, Radum Calls on Drag City, reuniting for the occasion with Cathal Coughlan, the vocalist from Microdisney, the group where O'Hagan first established his career three decades earlier.
O'Hagan and Coughlan established Microdisney in Cork, Ireland, during the early 1980s, earning notice for an articulate and frequently politically charged strain of indie pop. Following their 1982 move to London the band sustained a run of well-regarded albums until its dissolution in late 1988, after which Coughlan formed the Fatima Mansions while O'Hagan concentrated on independent work. His first solo album, titled High Llamas and released in 1990, already displayed Beach Boys-inspired instrumentation and a general West Coast polish that foreshadowed later developments. O'Hagan subsequently launched the High Llamas as the outlet for his Baroque pop, Beach Boys, and space-age electronic inclinations, unveiling Santa Barbara in 1992.
Shortly thereafter, after an introduction at a Stereolab concert, O'Hagan joined the group as keyboardist on a steady basis through the 1994 release Mars Audiac Quintet, though he continued appearing on later recordings. The High Llamas followed Gideon Gaye in 1994 with Hawaii in 1996, an album merging European avant-garde elements with an idealized West Coast sunshine-pop sensibility; these two releases, together with O'Hagan's continued ties to Stereolab, raised the band's visibility. Mary Hansen of Stereolab contributed guest vocals to the High Llamas' Snowbug in 1999 and Buzzle Bee in 2000, while O'Hagan joined Tim Gane for the one-off Turn On project in 1996 and worked with Palace Songs, Cornelius, and numerous other artists across the late 1990s. His facility for replicating a precise era of Beach Boys sound led to a meeting with Brian Wilson to discuss a collaboration that ultimately did not materialize.
The High Llamas' seventh album, Beet, Maize & Corn, arrived in 2003 and earned praise for its near-total reliance on string, brass, and woodwind scoring, qualities that persisted, though less centrally, on the refined Can Cladders of early 2007. Late that year Gane and O'Hagan teamed again for the soundtrack to the French comedy La Vie d'Artiste. In addition to his ongoing High Llamas and Stereolab commitments, which extended through the latter's final album Chemical Chords in 2008, O'Hagan supplied string arrangements for multiple Super Furry Animals releases, played various instruments on Kassin+2's Futurismo, and participated in many further projects. He also co-created installations with Jean-Pierre Muller that combined visual imagery with O'Hagan's musical settings; the recordings from one such project, The Musical Paintings, appeared on Drag City in 2008.
The High Llamas resurfaced only in 2011 with Talahomi Way, favoring a warmer and more explicitly 1960s-oriented palette. Afterward O'Hagan resumed arranging duties for Paul Weller, Gruff Rhys, and Alexander Von Mehren. The subsequent High Llamas album Here Come the Rattling Trees originated as a theatrical work centered on characters O'Hagan devised during bicycle rides through his Peckham neighborhood; the ensemble performed the material in pubs and theaters during 2014 before recording it for a Drag City release in early 2016.
Over the following years he contributed to releases by Kassin and Domenico Lancellotti while also rejoining Coughlan for Microdisney performances at two concerts. The reunion proved sufficiently successful that O'Hagan invited Coughlan to supply vocals and lyrics, resulting in three songs on Radum Calls, Radum Calls, O'Hagan's first solo album in thirty years, issued by Drag City in October 2019.
