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Alfredo Le Pera was Carlos Gardel's frequent collaborator as a lyricist. Their partnership produced some of the most iconic tangos of all time, including "Por una Cabeza," "Volver," and "El Día Que Me Quieras." Le Pera's lyrics were known for their poetic imagery and emotional depth, which perfectly complemented Gardel's passionate singing style. Together, they created a musical legacy that continues to captivate audiences worldwide.