Complex sentence: In 1991, her breakthrough work "Acrostic Wordplay" was premiered by the Nieuw Ensemble-since then it has been performed in more than 20 countries in Europe, Asia and North America.
Split into simpler sentences: In 1991, her breakthrough work "Acrostic Wordplay" was premiered by the Nieuw Ensemble. Since then it has been performed in more than 20 countries in Europe, Asia and North America.