I danced to Mario brothers music (Legend of the Seven Stars) backstage Saturday night, while my orchestra played it onstage.  Our choral video game song (Portae -- Wild Arms) was over, so we were being very quiet, but dancing, backstage.  Well, some of us were dancing.  And some of them were doing video game combat moves.  And the dancers and the fighters were improv-ing together.  Glorious.  wmgso.org