A music album, which contains one of the longest songs "Echoes" in it, which checks in at almost 24 minutes long. Other songs include "One of these Days","A Pillow of Winds","Fearless","San Tropez", and "Seamus". Echoes is especially enjoyable if you listen to it during the end of the "2001: a Space Odyssey", (mute the movie, of course), smoke a bowl and relax, completely.
The greatest band that ever existed. This music, especially that from "The Dark Side of the Moon" will be popular for multiple generations. It is STILL on the I-tunes top 100 highest sold albums now even though it was released in 1973. Hopefully you are looking up this to learn more about the band, and you can do so using the other definitions, but let me tell you, a $100 dollar or so investment at your local record store will give you music you will love for the rest of your life. Can you say that about many of your previous ones? Start your collection with Animals, The Wall, The Dark Side of the Moon, Meddle, and the Piper at the gates of dawn.