Sanctitude captured the band in concert at London's Union Chapel in May last year on the acoustic Unplugged & Reworked tour. And guitarist Anders Nystrom admits the group were apprehensive about presenting their material in a new way.

He says: "As a band we set out on uncharted waters but, while apprehensive about the journey ahead, our intentions couldn't have been more genuine to undertake this beautiful experience. Sailing this project into harbour turned out to be bliss and has ultimately enriched all the members of Katatonia."