According to Grove Music, Gigli's 'Amore fra gli impossibili' is an eccentric work where "the pastoral setting is disturbed by mythological references and the addition of the characters Don Chisciotte and Coriandolo, in an ironic and grotesque atmosphere."

Piano-vocal score for selections from Gaetano Donizetti's Anna Bolena, with libretto by Felice Romani.

Libretto of the opera seria "Arianna e Teseo" by Pietro Pariati. The story unfolds in the island of Crete where several young Athenian men are brought to be ritually sacrificed, and Athenian maidens are to be delivered as victims to a minotaur that lives in a labyrinth. Among the Athenians is Arianna, the daughter of Minos (Minosse), King of Crete, who was abducted as a child by King Aegeus, and Teseo, Aegeus's son. Teseo is determined to kill the minotaur in order to save Arianna's friend Laodice, but Arianna believes that he loves her friend. In spite of her doubts, she hands over to Teseo the secret how to kill the minotaur and vanquish Tauride, King Mino's champion, which she overheard from Minos. The work ends with Teseo's victory over the minotaur and his reconciliation with Arianna.

Libretto for L'Atalipa by Girolamo Gigli.

Piano-vocal score for Puccini's La Bohème, autographed by Puccini.

Goldoni turned to Samuel Richardson’s novel Pamela, or Virtue Rewarded (1740) as the inspiration for his La buona figliuola. In 1750, he wrote the play Pamela nubile and then turned it into a libretto for Duni. Although Duni’s La buona figliuola (1756) was a failure, Piccinni’s setting in 1760 was a huge success. The hilarious comedy coupled with Piccinni’s sentimental treatment of Cecchina contributed to the popularity of the opera, which still receives performances to this day. Typical of opera buffe, La buona figliuola features chain-like finales that propel the plot and characters to the end of the act (at that time, sectional finales were new to Rome). Other features of his music that receive praise are the beautiful, Italianate melodies, energetic accompaniments, and the variety of musical treatment throughout the opera.

This is a ca. 1763 copy of the libretto of "Catone in Utica," by Metastasio. Gian Francesco de Majo set this libretto to music for the 1763 carnival season in Turin. In this story, Caesar and Fulvio meet Cato, Utica's ruler, and offer him a peace truce, but Emilia, Pompey's widow, suspects treachery and plots to murder Caesar. Cato rejects a Senate's order for a reconciliation with Caesar and demands that Caesar surrender his dictatorial powers. Marzia, Cato's daughter, promised in marriage to Arbace, is in love with Caesar and pleas to her father to deter him from waging war. Arbace, who feels that his love for Marcia was betrayed, is lured by Emilia into an assassination attempt on Caesar. Fulvio is led to believe that Emilia will attempt on Caesar's life as he leaves by the gate of the city and advises him to take a secret path only to discover that Emilia used him to deliver Caesar into the hands of her followers. As Fulvio announces the victory of Caesar's armies in Utica, Cato stabs himself and before dying grants forgiveness to Marcia on condition that she swear loyalty to Arbaces and hatred towards Caesar. The library's copy …

An arrangement the aria Quand le destin with English and Italian lyrics. A color lithograph on the cover depicts Jenny Lind.

Piano-vocal arrangement of Mozart's La Clemenza di Tito, with German and Italian lyrics.

By the time of Mozart and Da Ponte’s collaboration on Don Giovanni, the Don Juan legend had been represented in musical entertainments and on the popular stage a number of times. Although it was an unusual topic for Viennese court opera, the retelling of the Don Juan story was immensely appealing for the Italian troupe in Prague. Don Giovanni did eventually make its way to Vienna, but the opera did not meet the same success it had received in Prague.

By the time of Mozart and Da Ponte’s collaboration on Don Giovanni, the Don Juan legend had been represented in musical entertainments and on the popular stage a number of times. Although it was an unusual topic for Viennese court opera, the retelling of the Don Juan story was immensely appealing for the Italian troupe in Prague. Don Giovanni did eventually make its way to Vienna, but the opera did not meet the same success it had received in Prague.

Libretto of the opera "La favola di Orfeo" in several verse forms. Poliziano's version of the legend of Orfeo differs from the story in Monteverdi or Gluck's operas. In Poliziano's ending, Orpheus is torn to pieces by the maenads (or Bacchantes). This copy includes Bernardino Baldi's eclogue "Celeo e l'Orto," a culinary poem that describes the production of polenta.

This is a 1689 copy of Girolamo Gigli's three-act libretto for the opera "La Fede ne' tradimenti," set to music by Giuseppe Fabbrini for the 1689 Carnival season at the Collegio Tolomei in Siena, Italy.

Although Sacrati’s La finta pazza (1641) was immensely popular and influential, the opera has received little discussion in modern scholarship, due in large part to the absence of the music (even the number of extant copies of librettos is very small). Since Lorenzo Bianconi discovery of a score that was used for traveling productions, the opera has received increasing attention.

1686 libretto for Giuseppe Fabrini's opera La forza del sangue, e della pietà. The music for all of Giuseppe Fabrini’s operas, including La forza del sangue e della pietà, is lost. However, the libretti by Gerolamo Gigli, have been preserved for these dramas that were performed at the Collegio Tolomei in Siena. La forza del sangue e della pietà translates as “The Force of Blood and Pity.”

This is a ca. 1685 copy of the three-act libretto of "La Geneviefa" by Girolamo Gigli. The work was dedicated to Prince Francesco Maria of Toscana. The Sienese composer Giuseppe Fabbrini set the libretto to music for an opera staged at the theater of the Collegio Tolomei in Siena. Although the music of the opera is lost, the remark, "Il Sign. Giuseppe Fabrini, che ha data l'anima al verso con l'armonia della musica ..." in the preface of the libretto confirms Fabbrini's setting it to music. Concerning Fabbrini's operas, the Grove Music states that, "His operas to librettos by Gigli were all written for the college theatre which opened in 1685." The opera "La Genefieva" premiered that same year in February.

This is a [ca. 1743] score of "Giulio Cesare," an Italian opera seria in three acts by Handel. The performance forces include: flute, oboe, horns (in A and D), strings (violin, viola, violoncello, bass), continuo (theorbo and viola da gamba), harp, chorus of mixed voices (soprano, alto, tenor, bass), and soloist singers. A list of solo arias and duets of each act appears on p.170 followed by a list containing the names of the subscribers on pp.[171-172]. Two mythological figures [possibly, the god Apollo and the Muse Erato] and musical instruments signed by the London engraver [John] Strongitharm of Pall Mall appear on the title page. The name of each character appear at the top of p.3 with the names of the actual performers inscribed with pencil. The names of the casting coincide with those listed in the Oxford Dictionary of Music (online, 2009): "the castratos Senesino, Gaetano Berenstadt and Giuseppe Bigonzi (Caesar, Ptolemy and Nirenus), Francesca Cuzzoni (Cleopatra), Margherita Durastanti (Sextus), Anastasia Robinson (Cornelia), Giuseppe Boschi (Achillas) and John Lagarde or Laguerre (Curius)."

Libretto for Giuditta. The preface is dated May 10, 1697. Gigli is identified here under the name Amaranto Sciaditico.

This score is special edition of Mozart's opera "Idomeneo" issued by subscription by J. Frey in ca. 1822. The cursive signature J. Frey appears in ink at the bottom of the t.p. This edition is in two volumes. Volume 1 lists the names of subscribers and has a table of contents for each of the three acts with the incipit of first lines of texts of arias, recitatives and choruses. Volume 1 also contains the overture of the opera and the first act. Volume 2 contains the second and third acts. According to New Grove, in 1780 Mozart received a commission to composed a serious opera on a libretto by the Salzburg cleric Giambattista Varesco, which the latter based on Antoine Danchet's Idoménée.

This score is special edition of Mozart's opera "Idomeneo" issued by subscription by J. Frey in ca. 1822. The cursive signature J. Frey appears in ink at the bottom of the t.p. This edition is in two volumes. Volume 1 lists the names of subscribers and has a table of contents for each of the three acts with the incipit of first lines of texts of arias, recitatives and choruses. Volume 1 also contains the overture of the opera and the first act. Volume 2 contains the second and third acts. According to New Grove, in 1780 Mozart received a commission to composed a serious opera on a libretto by the Salzburg cleric Giambattista Varesco, which the latter based on Antoine Danchet's Idoménée.

This is a ca. 1762 copy of the libretto of "Ifigenia in Aulide," by Vittorio Amedeo Cigna-Santi, the principal librettist at the Teatro Regio in Turin. Cigna-Santi's libretto is an adaptation of Euripide's story of Ifigenia, the daughter of the king of Argos, Agamemnon. The goddess Diana decreed that Ifigenia had to be sacrificed in order to guarantee fair winds for the king's fleet on their journey to Troy. Achilles, rushed to save Ifigenia, his wedding bride, but Diana, moved by Ifigenia's obedience, spared her life before the priest killed her. Ferdinando Giuseppe Bertoni set this libretto to music for the 1762 carnival season in Turin. According to scholar George Hollis, the surviving arias of Ifigenia in Aulide are technically demanding and contain florid and lengthy passages in the tradition of opera seria. The library's copy of "Ifigenia in Aulide"is bound with the following librettos: "Catone in Utica," by Pietro Metastasio; "Sofonisba" by Mattia Verazi; "Arianne e Teseo" by Pietro Pariati; and "Le piacevoli poesie" by Gasparo Gozzi.

This is a 1562 copy of "Le istitutioni harmoniche," one of the most influential music theory treatises written by Gioseffo Zarlino. The first edition appeared in Venice in 1558. The treatise, divided in four parts, includes theoretical and practical elements of music. The first two parts discuss philosophical, cosmological and mathematical aspects of music, Greek tonal system and tuning. The third and fourth parts cover the rules of counterpoint and modes, respectively. This copy bears a dedication to Vicenzo Diedo. It contains a table of contents per chapter and list of corrections. Several handwritten annotations appear on the t.p. ink: "coll: cochi nuoi soc: Jesù;" "exdono Joannis Jerary;" and "Inscriptet catalog."

Libretto for Il martirio di S. Adriano. Grove Music Online and similar items in WorldCat point to authorship by Girolamo Gigli for a composition by Giuseppe Fabrini, circa 1690.

This a manuscript copy of two Mass movements, Kyrie and Gloria, gathered from a "Messa à 4." The copyist, Vincenso Marchetti, attributed this mass to the composer Matteo Bisso. The texts of both movements of the Mass are divided in several sections and set musically for an ensemble of mixed choir (S.A.T.B), vocal soloists, strings and basso continuo. Each section reflects changes of tonality, tempo, and musical meter. The composer indicated dynamics, the use of muted strings (e.g., p.[84]) and performance indications such as unison and col parte (e.g., p. [76] and p.[79]). The last section for the Chirie [sic] is set musically as a slow fugue in triple meter.