Original sentence: The premiere of The Martyr of Anitoch took place on October 15, 1880 at Leeds Town Hall, utilizing impressive forces: The orchestra numbered 111 instrumentalists, and there were 306 choristers
Edited sentence: It is to be noted that the orchestra and chorus numbered 417, namely 111 instrumentalists and 306 choristers.The audience that October morning was surely impressed by the presence of the chorus and orchestra.The premiere of The Martyr of Anitoch took place on October 15, 1880 at Leeds Town Hall