Does anyone know of a place where they play old music and you can dance?

Not sure of any venues that casually play old-timey music you can dance to, but perhaps an event like this is along the lines of what you’re looking for?

This is an awesome spot for live music. Maybe certain nights when they have live jazz? Alternatively you can look up swing dance clubs around the city such as Lindy Hop or Swing Central when they host free community nights