There was once a crazy theory propounded by some linguists that Polynesian languages were rich in vowels so that their speakers could ventilate their mouths in the hot tropical environment. Conversely, people speaking Slavic languages lived in cold areas, hence the stay warm they made minimum use of vowels.
You'd therefore expect Danish to be in the cold language set, no vowels at all. So what would explain this?
"a æ å æ ø å æ å"
which translates roughly as "I am on the island on the river".
This is from a Danish dialect in south west Jutland.