There are basically two forms in Sweden (and Norway). The Gammaldans which became popular in the late 19th century and are the East European dance forms of Schottische, Waltz, Mazurka and Polka and the Bygdedans which are the regional village country dances. These are the Springar, Gangar, Springleik, Springdans, Rulll, Pols, Hambo and Polska. There is also the Turdanser - a set dance, Rundans - round dance and Songdans - song dance and Songleik - song games. Tunes are called låt. A March is a Marsch - a common type of tune is a Brudmarsch (Bride's March). A gånglåt is a Walking Tune - slower than a Marsch and it can be danced rather like a processional. The Gånglåt is sometimes combined with the Snoa - a slow pivot turn.
A unique characteristic of Swedish dances is svikt - an up and down motion of the body which is different in each dance.
Classifying Tunes is a bit difficult as the same tune is used for more than one dance and they suffer from the age old folk characteristic of multiple names for the same tune and often naming it e.g 'Polska for someone' (av = by, efter = after) or 'Schottische from somewhere' (Schottische från Havero)
There is a style of singing called Kulning which is described as a Cow Herd Call.