Original sentence: The publishers, Booseys, realising its popularity, asked Elgar to revise "Land of hope and glory" so it could be produced as a separate song, and this was in fact sung by Clara Butt with great success at a "Coronation Concert" a week before the Ode was first perfomed in London
Edited sentence: The publishers, Booseys, realising its popularity, asked Elgar to revise "Land of hope and glory" so it could be produced as a separate song, and this was in fact sung by Clara Butt with great success at a "Coronation Concert" a week before the Ode was first performed in London