In 2003, Brückner enjoyed huge success on the European pop charts with "Loneliness." The single was produced with Eniac, Brückner's studio partner and a successful dance producer in his own right, and used lyrics that Brückner had found on an old soul record he had purchased in a charity shop. He re-recorded them, using his own female vocalist. Described by one critic as sounding "as if Daft Punk made trance," its melancholic vocals, buzzing synthetic bassline, and techno-tinged arrangement made a powerful club record. "Loneliness" had already achieved huge success in clubs across Europe before its commercial crossover. It had also been championed by numerous high-profile DJs such as Judge Jules and Pete Tong, with the former playing the track for 13 consecutive weeks on his national Radio 1 show and at midnight on New Year's Eve 2002. It was licensed to Ministry of Sound's trance imprint Data from Kosmo after a fierce bidding war and crossed over into the U.K. charts, while its success (and credibility) on a range of dancefloors remained unaffected.
Brückner's debut, All I Got, which was released in 2001, featured a number of his successful singles. MUC (the title coming from the abbreviation for Munich that appears on airlines' baggage tags) followed in October 2003 on Data. Its electro-trance content drew comparisons with the Human League and even ELO, and once again it demonstrated Brückner's ear for effective dancefloor dynamics and his skill reproducing them in the studio. It featured two versions of "Loneliness." ~ TiVo Staff, Rovi