Pink Floyd responded in part to the punk rock movement's fast, short, and aggressive tunes by… putting out an LP with five complex and relatively languid songs, three of which are longer than 10 minutes. And it is awesome.
1977's Animals is an album that's best experienced as an album. I suppose you could play "Sheep" or "Pigs (Three Different Ones)" as stand-alones, but why would you? If you've never listened to this one, you need to clear an hour (actually about 45 minutes) and sit down and give it some attention.
"Pigs on the Wing (Part One)" and "Pigs on the Wing (Part Two)" are short and succinct acoustic pieces that bookend the album. Together they don't quite add up to three minutes.