Complex sentence: They also had successes in the 1940s, with Tania performing as a solist on Del Pueblo, Paris and Belgrano radio stations and performed in "El Mundo" (the World) in 1945 with Mariano Mores.
Split into simpler sentences: They also had successes in the 1940s, with Tania performing as a solist on Del Pueblo, Paris and Belgrano radio stations. She performed in "El Mundo" (the World) in 1945 with Mariano Mores.