6 ([return])
[ Metastasio, p. 31.]
7 ([return])
[ Metastasio, p. 34, cf. p. 4.]
8 ([return])
[ Metastasio, p. 30.]
9 ([return])
[ By Sarti, 1752; Jomelli, 1755; Hasse, Gluck (Metastasio, lett. V., p. 35), 1756; Guglielmi, 1767.]
10 ([return])
[ Metastasio himself counselled Farinelli to make this alteration. (Opp. post., II., p. 31.)]