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The profile · researched 28 October 2026
The mixing engineer who became the headliner: Cassian's long route to the top of the bill
Cassian Stewart Kasimba spent a decade making other people's records sound enormous — RÜFÜS DU SOL, Anyma, John Summit — before his own name started selling out fields. In late 2026 he is doing both at once: arena support slots across the United States and two sold-out open-air homecoming shows in Australia.
Sydney, Modular and a Sprinter van
Cassian Stewart Kasimba grew up in Sydney and started on his great-grandmother's piano at five, picked up a guitar at about eleven and played in bands through high school. By fifteen or sixteen he was going to electronic shows around the city, and by seventeen or eighteen he was making electronic music himself, pulled in by the Modular Recordings orbit of the time — Cut Copy, Tame Impala, that whole run of Australian records. His first release came out when he was eighteen or nineteen on Bang Gang, a Modular offshoot.
What followed was less a solo career than an apprenticeship conducted in public. From around 2012 and 2013 he was in the studio with RÜFÜS DU SOL, mixing their records, remixing their tracks and touring with them. The track that eventually turned him back into an artist in his own right, "Lafayette", was written while he was out on the road with the band, working in a Sprinter van between shows. In 2018 it became the first record ever released on Rose Ave, the label RÜFÜS DU SOL had just started — the first artist signed to the imprint was the man who had been mixing their albums.
He moved to Los Angeles at the end of 2015 and made it permanent in 2020. He has been based there since, which is why an Australian producer's biggest headline shows now read as a homecoming rather than a hometown run.
Laps, and the long way round
The debut album, Laps, arrived on Rose Ave on 26 June 2020. He has described it as being about the cycles and loops people fall into inside relationships, which accounts for the title and for the way the record keeps circling back on its own motifs rather than resolving them. Crooked Colours vocalist ZOLLY sings on "Magical".
The album was not a studio product delivered cold. Most of the tracks had been in his live sets for roughly eighteen months before release, which is an unusual way to make a dance record and a very usual way to make one that works on a field. The songs had already been tested against crowds before anyone could stream them.
Laps also landed in the middle of a pandemic, which removed the touring cycle that would normally have followed it. The catalogue has since grown through singles and label releases rather than another full-length — his own artist releases now account for more than 200 million streams, against around 1.5 million monthly listeners.
The credit list nobody sees
The part of the career that pays the rent, and arguably the part that explains the live sound, happens at a mixing desk. Cassian mixed the RÜFÜS DU SOL albums that took the band from Australian success to American arenas, and picked up a first Grammy nomination at the 2020 awards for mixing "Underwater" from Solace. The Grammy itself came through "Alive", the RÜFÜS DU SOL track he worked on, alongside ARIA and APRA recognition for the same body of work.
Beyond that there is Anyma, John Summit, Dom Dolla, Adriatique and Hayden James, plus the earlier run of Australian names — What So Not, Crooked Colours — that built the gold and platinum certifications. Counted across production, writing and mixing credits rather than his own releases, the figure quoted by his bookers is over five billion streams.
The largest single job to date was not a record at all. Cassian was Musical Director for Anyma's The End of Genesys at Sphere in Las Vegas, running production, mixing and mastering for a show seen by more than 200,000 people across twelve dates. A venue built around a 160,000-square-foot screen still needs somebody deciding what the room actually sounds like, and that was his brief.
Where things stand now
His own releases sit across Afterlife, Rose Ave, Experts Only and tszr, which is a fair map of where melodic house and progressive techno are being traded at the moment. The most recent single is "Come To Life" with AR/CO, out on tszr in July 2026.
The touring diary is the more telling document. Songkick currently lists fifteen upcoming dates. Through November he is on arena stages in the United States: State Farm Arena in Atlanta on 15 November, the Kaseya Center in Miami on 20 November, and two nights at Chicago's United Center on 24 and 25 November, where John Summit's CTRL ESCAPE arena tour is the headline billing. There is a club date at LIV in Las Vegas on 14 November. Across the year he has also played Coachella and Tomorrowland, and his bookers put career headline ticket sales above 100,000.
The Australian shows are the ones that mark the change in status. Announced on 11 June 2026, with presale on 18 June and general on-sale on 19 June through Untitled Group, the Day-To-Night run takes in the Sydney Portugal Community Club in Marrickville on Saturday 31 October and Heide Sculpture Park in Bulleen, outside Melbourne, on Saturday 7 November. Both have sold out. He has gone from support slots in American arenas to selling out two of his own fields at home inside the same month.
Seven hours of daylight and dark
The Day-To-Night format is the point rather than a tagline. Each show runs from 3pm to 10pm in the open air, starting in afternoon light and finishing well after dark, which gives the melodic-house end of the catalogue somewhere to sit before the harder progressive material arrives. The Melbourne site spreads across open fields dotted with contemporary art; the Sydney one turns a Portuguese community club in the inner west into an outdoor room.
The supporting bill is curated rather than filled: Nils Hoffmann performing live, Mild Minds on a DJ set, Samantha Loveridge and Sydney producer OLIIV. Three of the four work in the same emotive, melodic register, so the seven hours build in one direction instead of lurching between styles.
Beat Magazine, previewing the Melbourne date, noted that his live sets have become as talked-about as his releases, and that the outdoor format gives the material room to breathe — a reasonable summary of why a producer best known for other people's records can now sell out a sculpture park on his own name.
The show, now
The current headline format is Day-To-Night: a single seven-hour open-air event running 3pm to 10pm, so the set moves from afternoon light into full darkness rather than opening in a dark room. The two Australian dates — Sydney Portugal Community Club in Marrickville on 31 October 2026 and Heide Sculpture Park in Bulleen on 7 November 2026, both promoted by Untitled Group and both sold out — are staged across open ground, with the Melbourne site spread over fields dotted with contemporary art. Support is curated to hold one mood across the whole day: Nils Hoffmann playing live, Mild Minds on a DJ set, Samantha Loveridge and Sydney producer OLIIV. Cassian plays the closing stretch, built from his own melodic house and progressive techno catalogue, much of which was road-tested in his sets before it was ever released. Production is billed as the main spend after the lineup, and Beat Magazine's preview noted that his live sets have become as talked-about as his records, with the outdoor format giving the material room to breathe. Away from the headline shows the format changes considerably: shorter support slots on US arena stages through November, including the United Center in Chicago on 24 and 25 November under John Summit's CTRL ESCAPE arena tour, and late club sets such as LIV in Las Vegas on 14 November.
Researched from noise11.com · untitledgroup.com.au · beat.com.au · grammy.com · insomniac.com · thepartae.com · songkick.com · beatport.com
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