On "Dark Outside" Akis Boyatzis unveils a mature and compact contemporary album balanced between his own and guest artists' vocal duties. There is an additional Sigmatropic member introduced as well, vocalist Anna Karakalou, who injects a breathy and sensual tone. There is a sterling guest cast as well with vocal participations from: Robert Fisher (Willard Grant Conspiracy), Howe Gelb, Carla Torgerson (Walkabouts) and Jim Sclavunos (Nick Cave & The Bad Seeds / Grinderman / Vanity Set). Mixed by Ian Caple (Tindersticks, Tricky), "Dark Outside" is a fluid album that combines the dreamy aspects of electronica and rock elements together.