This is folk dancing from Portugal. Santa Marta is in the north. There are various versions of the Vira de Santa Marta. I know two different ones on diatonic accordion, and one of them appears on Cachorros Piquantes. The vira is played like a fast waltz with a heavy emphasis on the first note of the bar.
Here's a French one, nicely played on a two-row. Lovely box he's playing too!
And one on fiddle....
From Wikipedia....The Schottische is a partnered country dance, Bohemian in origin, that is two short runs and a hop followed by four turning hop steps: step step step hop, step step step hop, step hop step hop step hop step hop.
Steps alternate one foot to the other, hops are only on one foot, so the leader's footwork would be: left right left hop on left, right left right hop on right, step on left hop on left, step on right hop on right, step on left hop on left, step on right hop on right.
In a basic step, the running steps are done in open position (follower on the right side of the leader) and the turning steps are done in closed position; but many many variations exists to play with those positions (including parting during the running steps to slip around a slower couple, or the leader genuflecting during the turning step and letting the follower circle around).