A waltz, is dance music in triple meter, often written in time, probably deriving from which German word, and is a folk dance in time which was popular in Austria, south Germany, German Switzerland, and Slovenia at the end of the 18th century?
Ländler: The Ländler (] ) is a folk dance in  time which was popular in Austria, south Germany, German Switzerland, and Slovenia at the end of the 18th century.
i don't know