Tommaso Guarducci (c. 1720 – 10 January 1803) was one of the most renowned Italian castrato singers of the 18th century, the interpreter of many starring operatic roles in various musical centers of Europe, most importantly Rome, Naples, London, and Florence.

Early life and career He was born in Montefiascone, in the Papal States (now in the central Italian province of Viterbo, Lazio) around the year 1720. No details of his early training are known other than a period of study in Bologna at some time with the noted contralto castrato Antonio Bernacchi.DBI, vol. 60, p. 313. His first known operatic role was Dorinda in the pasticcio La Flora in Urbino during the carnival operatic season of 1743. It was very common in 18th-century Italy for castratos to initiate their operatic careers in female roles, particularly in the Papal States, in which females were frequently barred from appearing in operatic roles by the popes, most particularly in Rome (Urbino lay within the boundaries of the Papal States after 1626). Guarducci's appearance in La Flora was received favorably, and it led to an invitation in 1744 by the Congregazione di Santa Cecilia to sing as a soprano at the basilica of Santa Maria Maggiore in Rome. Guarducci's period of activity in Rome at this time is documented up to the year 1749.Antonella Giustini, "Guarducci, Tommaso" in Dizionario storico biografico di Tuscia, Gente di Tuscia Tommaso Guarducci.

Guarducci's distinguished international singing career began in 1750, when the renowned castrato Farinelli (Carlo Broschi) invited him to travel to Madrid to join the musical establishment of King Ferdinand VI. The exact nature of his activities at the royal court of Spain remains unknown. All that is certain is that there is no record of his participation in any operatic productions sponsored by the court. Guarducci left Madrid in 1754 to sing in a production of L’Artaserse by Davide Perez that took place in Lisbon in June. He shared the stage with the great German tenor Anton Raaff, who was resident in Lisbon between 1752 and 1755 as a part of a great period of operatic productions at the Portuguese court sponsored by King Joseph I, a notable opera enthusiast, whose activities as a patron were interrupted by the great Lisbon earthquake of 1 November 1755. Neither Guarducci nor Raaff were present in Lisbon when the earthquake struck. Raaff had moved to Madrid during the summer of 1755, whereas Guarducci left Lisbon or Italy in March of the same year.

Professional maturity and retirement

The remainder of the 1750s brought engagements for Guarducci in three of the most prestigious operatic centers in Europe, first in Vienna during the winter of 1755-56, in which he appeared in Gluck’s opera L'innocenza giustificata. He next appeared in Reggio Emilia in 1756 and Milan for the carnival operatic season of 1757. A very important period of activity for Guarducci began in the summer of 1757, when he made his first appearance at the Teatro San Carlo in Naples, the most prestigious venue in Europe at the time for productions of opera seria. He remained in Naples with minor interruptions until early in 1762, with appearances in two operas each by Johann Adolph Hasse and Johann Christian Bach (the most significant work by the latter Catone in Utica of 1761). From this time until his arrival in London in 1767, Guarducci was itinerant, cast in operatic roles in Florence, Pisa, Siena, Parma, Rome, and Palermo. His appearance in Florence in the opera Artemisia in the spring of 1766 took place early in the reign as Grand Duke of Tuscany of the Archduke Leopold of Austria (later Holy Roman Emperor Leopold II), and shortly after, Guarducci received an appointment from Leopold as a court musician. On 10 May 1766, he appeared in a concert at the Palazzo Pitti, and on 24 July 1766, he participated in a performance of a cantata by Giovanni Battista Borghi sponsored by Leopold's court in the church of San Giovannino degli Scolopi in Florence, the first of many appearances in musical events arranged by the court of Tuscany.Robert Lamar Weaver and Norma Wright Weaver, A Chronology of Music in the Florentine Theater, 1751-1800 Warren, Mich. 1993, pp. 227-31. . The details of these events are recorded in issues of the Florentine newspaper Gazzetta toscana. Also recorded in the Gazzetta toscana at this time is Guarducci's appearance in a concert given on 26 July 1766 at the residence of the Florentine lawyer Francesco Guerazzi. His title “virtuoso di S.A.R. il Gran Duca di Toscana” (“musician to His Royal Highness the Grand Duke of Tuscany”), or variants, is first found in the libretto for Johann Christian Bach's opera Carattaco, performed during the carnival season of 1767 in London. From this time, Guarducci's position at the grand ducal court of Tuscany was recorded routinely in the cast lists of librettos until the end of his operatic career in 1777. His court appointment lasted until 1786. Weaver & Weaver (1993), p. 40.

Guarducci's appearances at the King's Theatre, Haymarket (now known as His Majesty's Theatre, London), in 1767 and 1768 may be described as a high point in the singer's career. He appeared with great acclaim in eight productions, one of them, a Sifare with music mainly by Carl Friedrich Abel, a “benefit” in his honor (in the 18th century, a “benefit” musical performance meant that the proceeds were turned over to a musician, not to a charity).Charles Burney, A General History of Music, vol. 4, London 1789, pp. 492-93. Burney noted that Guarducci's inserted aria “Quel labbro adorato” from the opera Adriano in Siria by Baldassare Galuppi was “constantly encored during the run of the opera”. Burney also recorded a benefit concert in the spring of 1768 for Guardasoni that featured Niccolò Jommelli’s oratorio Betulia liberata of 1743, and it was also well received.Burney, A General History of Music, vol. 4, pp. 493-94. Burney included a brief illustration of Guarducci's famous ability to sing effectively at a soft dynamic: “Guarducci, instead of an opera, had for his benefit this spring the oratorio of Betulia Liberata, set by Jommelli, in which among many admirable compositions, an air of supplication, through which were heard cries of the people in a distant chorus, sung extremely soft, was justly admired for its new and fine effect.”

Other notable operas in which Guarducci appeared in London include Carattaco by Johann Christian Bach (1767), La conquista del Messico by Mattia Vento (1767), and Ifigenia in Aulide by Giovanni Paisiello (1768). It was at this time that Guarducci first came into contact with the English music critic and music historian Charles Burney, who left vivid accounts of his activities. In his A General History of Music, Burney included a special section devoted to Guarducci's period of activity in London in 1767 and 1768, including an eloquent evaluation of his singing style and perceptive remarks about the tastes of the English music public. He described Guarducci as a “tall and awkward figure, inanimate as an actor, and in countenance ill-favoured and morbid; but with all these disadvantages, he was a man of great probity and worth in his private character, and one of the most correct singers I have ever heard”.Burney, A General History of Music, vol. 4, pp. 490-91. He continued as follows: .He was unfortunate in arriving here so soon after [Giovanni] Manzuoli, the impressions of whose great voice and majestic manner of singing had not been effaced by his immediate successor, [Filippo] Elisi. Guarducci's voice, though of much less volume than Manzuoli's, was clear, sweet, and flexible. His shake and intonations were perfect, and by long study and practice he had vanquished all the difficulties of his art, and possessed himself of every refinement of his particular school, as well as of the general vocal embellishments of Italy at this period. Though prejudice ran high against him on his first arrival in London, his merit at length made its way, and his highly polished manner of singing was very much approved and felt by the principal professors and persons of taste and discernment who heard him. He soon discovered that a singer could not captivate the English by tricks or instrumental execution, and told me years after, at Montefiascone in Italy, that the gravity of our taste had been of great use to him. “The English,” says he, “are such friends to the composer, and to simplicity, that they like to hear a melody in its primitive state, undisguised by change or embellishment. Or, if, when repeated, when riffioramenti [“embellishments”] are necessary [meaning in the repeat of the “A” section in an ABA da capo aria or dal segno aria], the notes must be few and well selected, to be honoured with approbation.” Indeed, Guarducci was the plainest and most simple singer, of the first class, I ever heard. All his effects were produced by expression and high finishing, nor did he ever aim at execution. He sung in the English oratorios upon short notice, with very little knowledge of our language, and still less practice in pronouncing it. However, he was well received and well paid. For he had £600 for twelve oratorios, a larger sum than was ever given on a like occasion, till the time of Miss [Elizabeth Ann] Linley.

After returning to Italy from London in 1768 (sometime after the closing of the King's Theatre in London on 30 June),Recorded in DBI, vol. 60, p. 314. Guarducci made his principal appearances at the Teatro Argentina in Rome during the carnival operatic seasons of 1769 and 1770, his most successful role as Enea in Niccolò Piccinni’s Didone abandonnata. On 25 November 1768, on his way to Rome from Florence, as reported in the Florentine newspaper Gazzetta toscana,Weaver & Weaver (1993), p. 255. Guarducci sang in a concert given at a villa owned by Sir Watkin Williams-Wynn, 4th Baronet, a son of the distinguished British politician Sir Watkin Williams-Wynn, 3rd Baronet. The concert was intended as a tribute for the British diplomat and noted patron of the arts Sir Horace Mann, who represented the Kingdom of Great Britain at the court of Tuscany from 1737 until his death in 1786, between 1767 and 1782 as Envoy Extraordinary. It is entirely unknown whether this activity was a part of efforts to cultivate the large number of British ex-patriates resident in Florence at the time in light of his recent successful appearances in London. It is known, however, that he soon began to associate himself with Earl Cowper, another notable patron of the arts in Florence at the time. The first record of their acquaintance dates from a concert sponsored by Earl Cowper at his residence in Florence on 30 March 1770.Weaver & Weaver (1993), p. 267.

In April 1770, Guarducci appeared in Bologna in La Nitteti by Josef Mysliveček, the beginning of a profitable period of collaboration with that composer. By the time of the première of the opera on 29 April, he had just missed meeting Wolfgang and Leopold Mozart in Bologna, since they were present there at the end of March during the preparations for Mysliveček's opera.Freeman, Daniel E. Josef Mysliveček, Minneapolis 2022, pp. 47-51. Guarducci is documented as being present in Florence as late as 8 April 1770 before arriving in Bologna to appear in La Nitetti.He appeared in a concert of the Accademia degl'Ingegnosi on that day according to Weaver & Weaver (1993), p. 270. The Mozarts were present in Florence in early April of 1770, but there is no record of an encounter with Guarducci.