An iTunes audio Instant Grat is a way for consumers to get a track in advance of an album release, which acts as a ‘deposit’ against a subsequent purchase of the digital version of the album, slotting into the full downloaded file. One Of These Days has just been made available as the second Instant Grat from David Gilmour’s forthcoming Live At Pompeii album, and the video clip can be seen above.

Directed by Gavin Elder, it is included in the worldwide one-off Live At Pompeii cinema feature performance on Wednesday 13th September, as well as on the Blu-ray, DVD, and Deluxe 4-disc versions, which are all available from Friday 29th September. The audio and audio-visual formats all contain at least 148 minutes of music; for more details, please go to www.davidgilmour.com/pompeii or www.davidgilmourcinematickets.co.uk.