Queer revivals of this dance originate from a festival held in Hamburg in 2001. This dance, described as a “sad thought” by one musician, features moves such as tracing figure eights with one’s feet. Rudolph Valentino helped popularize an “American” variety of this dance that added head (-5[1])snaps. A variant of this dance divided into phrases like “cross” and “resolution” are part of the widely taught “eight-step basic” for this dance. (-5[1])Performances of this dance in exclusively minor keys occur in (*) Finland, (10[2])where the largest festival for this (-5[1])2/2 or 4/4 dance is held. (-5[1])Accompaniment bands for this dance’s “new” form feature the bandoneón accordion. (-5[1])The inventor of that form, Astor Piazzolla, also added electric (10[1])guitar to this dance which originated from the earlier milonga and flamenco. For 10 points, name this partner dance from Uruguay and Argentina. (10[1])■END■ (10[4])