There are a few ways you can view this new album from Pink Floyd called The Endless River. On one hand you could look at it as crass opportunism to leverage the buzz built around recent reissues of their last official album, The Division Bell, something I've heard some grumbling about in various and sundry online forums.
Being a believer in the band as a group of people who are bigger than that, especially based on some of the videos I've watched interviewing surviving members, I really don't think that is the case here.
On another hand you could look at it as the band simply wanting to put forth more music for the fans, who are (likely, perhaps) hoping this might signal an eventual opening of the archives for other future unreleased jams.
I like this viewpoint...
For those prone to reading between the lines for hidden meaning, given the titles of the songs on The Endless River and the overall sound which is very much akin to classic Pink Floyd circa 1975, one might view this release as something of open peace-making letter from the surviving band members, Dave Gilmour and Nick Mason, to their estranged bandmate, Roger Waters.
I'll let you decide whether anything like that might be conscious, subconscious or even there at all...
Tracks like "Things Left Unsaid" feature recently deceased keyboardist Rick Wright's trademark synthesizer soloing which sounds very much like an outtake -- or an homage, more likely -- from Pink Floyd's Wish You Were Here album. This leads into another jam sounding very much of that mid-seventies era called "It's What We Do." Later there are songs called "The Lost Art of Conversation." At the end of the album is a song with lyrics and vocals from David Gilmour, a lovely tune called "Louder Than Words." "Anisina" revisits themes from Dark Side of the Moon's "Us and Them," replete with saxophone solo and Dave Gilmour's beautiful slide and lead guitar soloing.
You get the idea...
I think, that if you are a Pink Floyd fan you'll want to own The Endless River in some form, be it download (iTunes, HDTracks), CD or LP or DVD or Blu-ray. If you are casual fan and happy with your copies of Wish You Were Here and Dark Side of the Moon, you probably don't need this new album.
However, if you are someone who would like to have some lush instrumental, progressively-oriented rock music that you can keep on in the background during a party, well The Endless River may well be your cup of tea. Please note that I'm saying this in the best possible way... I don't think The Endless River is any sort of pedestrian, throw-away album. It is another snapshot of the inner workings of Pink Floyd, presented in a sort of instrumental manner. These were reportedly pieces of music made during The Division Bell sessions which originally was supposed to have a strong ambient music element to it, an approach which was abandoned as the more song oriented vibe took hold as the primary direction for the record.