Drinking at the fountain of classic 1970s rock bands such as Pink Floyd, Deep Purple and Queen, adding heavy guitars inherited from the band's past heavy metal background and experiencing contemporary sound solutions, Poseidon reaches its fourth album willing to redefine its status on underground music from São Paulo.
Recorded between 2015 and 2018, At Dream's Door contains 11 songs, quotations in Latin, Greek and Italian, use of flute, sitar, mandolin, synthesizers, vocoders and loops, in an almost uninterrupted flow which suggests that the album is actually just a song . At the same time the tempo varies and the melodies stand out more than ever in the history of the veteran power trio, almost framing the work as progressive. But Marco Alexandre (vocals, guitars, keyboards), Belmilson Santos (bass) and Marcelo Soto (drums) do not embark on the ground of meaningless virtuosic instrumentation keeping the songs cohesive, assertive, dynamic.
The lyrics are based on Neil Gaiman's graphic novel Sandman and the dreamy and delirious atmosphere of the play was both a lyrical and sonorous inspiration, sparking an intriguing sense of delirium.