In this dance, forward and backward cross steps are used in patterns named for a figure-eight shape. An instrument imported from Germany traditionally (-5[1])appears in ensembles playing this dance’s music, which often ends in a two-beat “chan-chan” flourish. The name of a (-5[1])piece written for this dance means “by a head.” (10[1])This dance’s steps are performed in a slow, slow, quick, quick, slow pattern. The accordion-like (-5[1])bandoneon (10[1])was played by a pioneer of this dance’s “new” style, Astor Piazzolla. (-5[2])The composer Carlos Gardel (10[2])wrote music (10[1])for this dance that originated in Buenos Aires. For 10 points, name this South American (10[1])partner dance that “it takes two to” do. ■END■ (10[4])