Here are the concluding bars of the famous air as written in the original Italian version, and the same phrase as altered by gluck, when produced in Paris.
"Style in Singing"
W. E. Haslam
A certain Countess von Thun, whose name is associated with Beethoven, Mozart and gluck, met with one of his clavier sonatas in manuscript, and expressed a desire to see him.
"Haydn"
J. Cuthbert Hadden
Unreasoning Rivalries The Salomon concerts should have begun in January, but London, as it happened, was suffering from one of those unreasoning rivalries which made a part of Handel's career so miserable, and helped to immortalize the names of gluck and Piccini.
"Haydn"
J. Cuthbert Hadden