 They provide various commentary on religion in South Africa, ranging from blasphemous references to subjective experiences of disbelief.They changed musically with every album released, from a raw sounding EPs to more mature "Swanesang" with rock music influence.Songs like "Heiden Heiland", "Prioritiseer", "Brand Suid-Afrika" and "Backstage" off Swanesang displayed a more mature style of songwriting, as well as better studio production (such as the use of a vocoder to fill out Van Coke's singing).