original: However, some performances connected to the festival take place before and after the official dates.
simplifications: Some performances connected to the festival happen before and after the official dates. Some festival performances happen before and after their official dates. However some concerts connected to the festival take place before and after the official dates. But some performances in the festival take place before and after the official dates. Some festival performances happen before and after official dates. Festival performances can happen before and after the official dates too. However, some festival performances occur before and after the official dates. However, some festival performances are before and after the official dates. Some festival performances take place outside the official dates. However, some of the festival-related plays take place before and after the official dates.