Complex sentence: She starred in "Idolos de la radio" in 1934 but was famous for her tango work and made over 200 recordings in the 1920s and 1930s.
Split into simpler sentences: She starred in the film "Idolos de la radio" in 1934. She was famous for her tango work and made over 200 recordings in the 1920s and 1930s.