Epoch Collapse - Music, Video, Artwork. The Turbulent Land of Hallucination is from the 7th Volume of 'Unprepared Piano'. This piece is the first movement. 'Unprepared Piano' is a series of works involving piano improvisation, electronics and tape processing. Originally composed by Epoch Collapse in 1991-1992. This video can be found on YouTube - on the Epoch Collapse channel. © Epoch Collapse