The passion flower (Flor da Paxao in Portuguese) is an exuberant exotic plant, a sinuous and unpredictable liana, as is the melodic line of this piece. It grows freely on the solid rhythmic support of the tango, and is strengthened by the mordents that form its tendrils. Highly modulated, it evokes the passion of love that is constantly evolving, from happiness sometimes tinged with melancholy to the most lyrical enthusiasm or, suddenly, to discord, thus changing but always alive with the passionate feelings that follow one another.