Most of Vivaldi's operas were composed for Venice, but between 1718 and 1720, he was in the employ the Austrian governor of Mantua, and he composed Tito Manlio for the governor's wedding celebration. The wedding never took place, but the opera was performed in 1719. The Mantuan court was very wealthy, and this is clear from the lavish scoring of Manlio: in addition to the usual strings, Vivaldi uses horns, trumpets, oboes, bassoon, two different registers of flutes, timpani and viola d'amore.
In 1718 Vivaldi entered the employment of Prince Philip of Hesse-Darmstadt who had been appointed governor of Mantua, then part of the Austrian Empire. His responsibilities seem to have been varied but probably the most important of them was to provide operas for his employer’s court. One of these was Tito Manlio, which was produced for the Mantuan Carnival season in 1719; and, if we are to believe a note by Vivaldi himself at the head of the score, written in the space of five days.
The general wall of obscurity surrounding Vivaldi's operas seems to be lifting. Tito Manlio, a large work composed in 1719 for a royal wedding that was called off at the last minute, was recorded on LPs in the 1970s and in 2006 received two new recordings, released at nearly the same time. So much for the theory that opera on recordings is dying! The opera is a compelling one, with a convincing father-son drama: the ancient Roman consul Tito Manlio (or Titus Manlius) plans to have his son executed for disobedience, but the younger Manlio is saved by a flood of acclamation for his military deeds. The opera seria libretto was set by several other composers of the early eighteenth century. Its central role is the young Manlio, intended for a castrato and sung here by soprano Elisabeth Scholl.
Following the phenomenal success of Cavalleria Rusticana (1889) operas flowed rapidly from Mascagni’s pen for about a decade: L’Amico Fritz (1891), I Rantzau (1892), Guglielmo Ratcliff (1895), Silvano (1895), Zanetto (1896), and Iris (1898). With the arrival of the 20th Century the pace began to slow down: Le Maschere (1901), Amica (1905), Isabeau (1911), Parisina (1913), Lodoletta (1917), Il Piccolo Marat (1921), Pinotta (1932) and finally Nerone (1935), largely a reworking of a much earlier piece. Mascagni himself was convinced that the public’s obstinacy in preferring Cavalleria Rusticana was an injustice. Criticism of the earlier works has tended to centre on clumsy libretti and patches of weaker inspiration, while real controversy has surrounded the later pieces. Here, we are told, Mascagni tried to dress up as a modern, flirting with dissonance and ungainly vocal declamation, at the expense of his natural melodic gifts.