Complex sentence: From Gyndebourne, she spent a year retraining at the National Opera Studio leading to an invitation from the English National Opera to play the main part, Mimi, in Jonathan Miller's production of La Bohème.
Split into simpler sentences: From Gyndebourne, she spent a year training at the National Opera Studio. She soon received an invitation from the English National Opera to play the main part, Mimi, in Jonathan Miller's production of La Bohème.