 During the mid-to-late 1930s, some members of the Arcaño group were saying "vamos a mambear" ("let's mambo") when referring to the montuno or final improvisation of the danzón.It was Arcaño's cellist, Orestes López, who created the first danzón called "Mambo" (1938).In this piece, some syncopated motives taken from the son style were combined with improvised flute passages.