Sentimental Ultra marks DJ Heartstring's debut proper on Steel City Dance Discs, and their first album project. Starting life as a mixtape before a happy accident or two took it down a different path, the 15-track album finds the pair chasing not just peak-time euphoria and what they can conjure in a club setting, but everything around it, too. The befores and the afters. The soft and the supercharged. What life felt like when they were young. Featuring collaborations with SWIM, Spriitzz, BAUGRUPPE90, Sam Gellaitry, Saidah, DMA'S, KennyHoopla, Monk, 3NDLES5, David Jackson and secret act, they fold formative years influences such as indie rock, rap, ambient and breakbeat into their sought-after sound, and balance them with contemporary-coded ideas.This blend of worlds is at the crux of the album's concept visually as well. Sentimental Ultra is an exploration blurring the lines of hard and soft, taking inspiration from subculture communities around football hooliganism and skateboarding. The cover is shot by iconic British photographer Ewen Spencer, renowned for his work around Skins, The Streets and more. The collaboration has seen DJ Heartstring land features in Numero Berlin, Notion Mag and other cross-cultural editorial platforms ahead of the album announcement.To date, the project has already received various milestones across international radio, including Arielle Free's Big Whopper for third single 'Another Year Alone' and DJ Heartstring landing a coveted BBC R1 Residency in November. Adding to this is the slew of digital looks and accolades for DJ Heartstring's set recordings including their closing set at Soenda Festival earlier this year which is on 115k views since being published in May 2026, their Melbourne Boiler Room published in 2025 with +1 million views and their Belfast Boiler Room published in 2023 with +1.1 million views. There've been big releases such as 2025's You Are The Sun, I Am The Sky EP, and buzzy collaborations with fellow synapse-igniters like SWIM, Narciss, southstar and S.C.D.D.'s KETTAMA. The past few years have also seen remixes for Charli XCX and Sam Smith, Romy, Sugababes and Empire of the Sun, sets everywhere from Berghain to London's 3000-capacity Roundhouse, their own Teenage Dream parties and a must-listen contribution to the BBC Radio 1's Essential Mix series, which showcased just some of the sonic inspirations behind their signature, like Eurodance and trance, plus heaps of DJ Heartstring material.