Complex sentence: The entertainment provided at the Grecian varied from Shakespearean drama to ballet to comedy song solos, and while there Robson considerably extended his range, appearing in everything from "The Merchant of Venice" (as Shylock) to "More Ethiopians".
Split into simpler sentences: The entertainment provided at the Grecian varied from Shakespearean drama to ballet to comedy song solos. While there Robson considerably extended his range, appearing in everything from "The Merchant of Venice" to "More Ethiopians".