Complex sentence: From 1945 to 1955 Edita Piekha lived in Poland; there she studied music, sang with a choir, and excelled in Russian at her school, graduating at the top of her class.
Split into simpler sentences: From 1945 to 1955 Edita Piekha lived in Poland. There she studied music, sang with a choir, and excelled in Russian at her school, graduating at the top of her class.