Complex sentence: Victoria Skoglund first moved to Västerås, then Emelie Molin moved to Stockholm, but the heart of their music stayed in Gothenburg, but it would sooner rather than later be moved to Malmö.
Split into simpler sentences: Victoria Skoglund first moved to Västerås, then Emelie Molin moved to Stockholm. Still the heart of their music stayed in Gothenburg, but it would sooner rather than later be moved to Malmö.