The Sound Gallery in High Wycombe, a town to the west of London, is celebrating 40 years of The Dark Side of the Moon in a set of three Linn Playback nights at one the UK's finest audio stores. Over the three nights, the lucky ticket holders (which are available for free!) get to enjoy the whole album on a Linn Exakt music system worth £50,000.

Each night will be highly 'dark side themed' and will bring like minded people together to hear one of the world's greatest selling albums of all time. All the attendees will also get a chance to walk away some great prizes, including three copies of the new 180gram pressing of the album signed and inscribed by the "mad for f**king years" roadie Chris Adamson!

Each of these three prize copies contains a full colour photo of Chris signing the album (as exclusively seen below) as provinance (not that we can see the lucky winners wanting to sell this on), a rare black and white photo of the Pink Floyd football team and a Rock-it cargo sticker.

A limited number of free tickets are available via email request from The Sound Gallery's web site; the nights in question are Monday December 9th, Tuesday December 10th and Wednesday December 11th. The Sound Gallery can be found at 65 Castle Street in High Wycombe, Buckinghamshire.