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 playing this dance’s music, (-5[1])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 steps are performed in a slow, slow, quick, quick, slow pattern. (10[1]-5[1])The accordion-like bandoneon was played (10[1])by a pioneer of this dance’s “new” style, Astor Piazzolla. (10[2]0[1])The composer Carlos Gardel (10[1])wrote music for this dance that originated in Buenos Aires. (10[1]-5[1])For 10 points, name this South American partner dance that “it takes two to” do. (10[1])■END■ (10[1])