Night show on Wednesday & Thursday was titled "Yosakoi Matsuri-Uta" (Yosakoi Festival Song).  Monday through Thursday the night show is held at a stage in a restaurant.  The stage is smaller than the main. On Friday there is no night show.  Even if it was for 40 min. I enjoyed it. 
Then I visited a ballroom (dance hall) to practice.  Two years ago it was built and the floor was really nice.  I was satisfied with Yamako's night.