In this dance, forward and backward cross steps are used in patterns named for a figure-eight shape. An instrument imported from Germany traditionally appears in ensembles (10[1])playing this dance’s music, which often ends in a two-beat “chan-chan” flourish. The name of a piece written for this dance means “by a head.” This dance’s (-5[1])steps are performed in a slow, slow, quick, quick, slow pattern. (-5[2])The accordion-like bandoneon was played by a pioneer of this dance’s “new” style, (-5[1])Astor Piazzolla. (10[1])The composer Carlos Gardel wrote (10[1])music for this dance that originated in Buenos Aires. (10[3]-5[1])For 10 points, (10[1])name this South American partner dance that “it takes two to” do. ■END■ (10[5])