Original sentence: On the 12th and 13th May 2008, the following principal cast performed a concert version of Chess together with the London Philharmonic Orchestra:
Edited sentence: On the 12th and 13th May 2008, the following principal cast performed a concert version of Chess together with the London Philharmonic Orchestra.Staff at the Royal Albert Hall attributed this to equipment provided by the external production company.The concert was recorded for DVD, but no release date has yet been announced.The production was marred by sound problems that clouded diction, making it difficult on occasions for audience members to understand lyrics