The penny whistle is so hot right now. If you played the Bravely Default demo, chances are you were a bit swept up in the fantastic world-map music. Perhaps you were also reminded of Ni No Kuni's excellent world-map music. That's probably because both compositions prominantly feature the penny whistle (or tin whistle), rising above the orchestra in that special lilting way it has. See also: The Lord of the Rings and Titanic, among others.