Fourth outing from this cutting edge progressive ensemble experiments with grander arrangements, bolder rhythms, a few more commercial tracks, but with other pieces exploring more extended electronic music territory.

"When it comes to Orchestra Of The Upper Atmosphere's Theta Four, describing it as 'epic' feels like selling it short. The large ensemble harnesses a hybrid patchwork of electro-acoustic textures that brings to mind the spacey explorations of Alice Coltrane, Terry Riley, Tangerine Dream, Can et al. Choirs, choppy strings, throbbing beats, dreamy vocals and snarling bass rise and soar into bold themes creating a diverse and thrilling listen. If you're unfamiliar with their previous three albums, then start here." - Sid Smith, Prog

Personnel: Martin Archer (keyboards, electronics, saxophones, clarinets, flutes, recorders, melodica, voice), Steve Dinsdale (electronic drum kit, synth), frostlake (Jan Todd) (vocals, lyrics, electronics, celtic harp, lute harp, korg wave drum, keyboards, bowed electroacoustic bass, idiopan), Yvonna Magda (violin, electronics), Walt Shaw (acoustic percussion, electronics, voice), Terry Todd (bass and electroacoustic bass guitars)