(Prog) Tesseract have made their "reimagined" song Survival available to stream. It's lifted from the tour version of their album Polaris, which is due out on September 16. The package includes bonus disc Errai, with four new songs Survival, Cages, Tourniquet and Seven Names.

Vocalist Dan Tompkins says: "It's been fantastic to re-visit and re-work the vocals to some of the Polaris tracks from a different angle and with the benefit of time and space. The normal process of writing Tesseract songs starts with the creation of the music followed by the lyrical content.

"This time our producers have stripped away the music and re-created the songs based around the vocals. As a result this has allowed much more breathing space between both and also highlighted much more detail in the performance." Stream the song and read more here.