The fame and legacy of Maria Callas are nearly unsurpassed in the modern history of opera. Her fame has transcended the usual boundaries of classical music, and she has been the inspiration for several movies as well as the successful Broadway play "Master Class." Her extensive catalogue of recordings remains among the most coveted and controversial for both her fans and detractors.

Though American by birth, Callas (born Maria Anne Sofia Cecilia Kalogeropoulos) was born of Greek parents, and at age 13 her mother took her back to Greece because of financial difficulties caused by the Great Depression. She studied voice at the Royal Academy of Music in Athens with Spanish coloratura soprano Elvira de Hidalgo and made rapid progress; she soon sang Santuzza in a student production of Cavalleria rusticana. Her professional debut came at age 16 in a minor role in von Suppé's Boccaccio.

While still in Athens during World War II, Callas sang her first Tosca in 1942. In 1945, she returned to the United States and sang several auditions, but nothing came of her visit. Her first appearance in 1947 at Verona as La Gioconda brought her to the attention of Tullio Serafin; Serafin became her musical advisor for many years, acting as her coach and conductor of many of her performances.

The entire world of opera was stunned when, in 1949 -- while singing Brünnhilde in Die Walküre at Venice -- she agreed to sing Elvira in Bellini's I Puritani, alternating performances during the same week. That same year she traveled to Buenos Aires to sing Turandot and Norma. In 1950, she sang Aida at the Teatro alla Scala, but she did not become a regular member there until 1952. Summer of 1950 brought her to Mexico City where, in one month, she sang Norma, Aida, Tosca and Il trovatore. During these early years, Callas would sing nearly any role offered including Isolde, Leonore in La forza del destino, Constanza in Mozart's Die Entführung aus dem Serail, and Elena in I vespri siciliani.

As she matured, Callas began to concentrate on a smaller core repertory, including Cherubini's Medea, Bellini's Norma, Puccini's Tosca, Bellini's La Sonnambula, and Donizetti's Anna Bolena. Most of her other roles were heard only in one series of performances. After 1959, she rarely appeared on the opera stage, but she did sing concerts in America and Europe. Her last opera performances were in June 1965, in Paris as Norma. She came out of retirement in 1973 to tour the world with Giuseppe di Stefano in a series of recitals. Although financially rewarding, the tour did nothing to enhance her reputation. In 1971, she gave a series of masterclasses at the Juilliard School of Music in New York which were quite successful. In 1977, she died of a sudden heart attack in her Paris apartment.

Maria Callas was one of the most controversial singers of the twentieth century. She had a wide range from high E to the F below the staff, and an innate feel for the style of bel canto roles, but she was most notable for bringing a commitment and intensity to her dramatic portrayals that was nearly unprecedented at the time.

Using photorealistic video projection, Callas was brought back to the stage for a new tour in 2018. Callas in Concert features an interactive Callas on stage performing some of her most iconic recordings with a live orchestra. ~ Richard LeSueur

Giuseppe Verdi was to opera in the Italian tradition what Beethoven was to the symphony. When he arrived on the scene some had suggested that effective opera after Rossini was not possible. Verdi, however, took the form to new heights of drama and musical expression. Partisans see him as at least the equal of Wagner, even though his style and musical persona were of an entirely different cast. In the end, both Verdi's popular vein -- as heard in the operas Rigoletto, Il trovatore, and La traviata -- and his deeper side -- found in Aida, Otello, and Falstaff -- demonstrate his mastery and far-reaching development of Italian opera.

Verdi showed talent by the age of seven and even played organ at a local church. Around this time he was given an old piano, which he quickly learned to play with proficiency. He moved to Busseto in 1823 and began study the following year with Ferdinando Provesi. By age 15 he had become an assistant church organist and had already started composing. Beginning in 1832, he studied privately with Vincenzo Lavigna in Milan, after the Conservatory there turned him away.

He returned to Busseto and married Margherita Barezzi in 1836. Having achieved publication of some songs, he moved to Milan in 1839 and composed his first opera, Oberto. It was a success, though his next effort, Un giorno di regno, was an abject failure. Worse, Verdi's wife died during its composition. (Their two children had died in the previous two years.) Stunned and depressed, the composer struggled on to rebound with Nabucco (1842) and I lombardi (1843). Macbeth, Luisa Miller, and other operas came in the 1840s, most with great success.

Around 1847, Verdi developed a relationship with soprano Giuseppina Strepponi and the two lived together for many years on Verdi's farm, Sant'Agata, before finally marrying in 1859. In the period 1851-1853, the composer wrote three of his most popular operas. Rigoletto (1851) and Il trovatore (1853) were instant successes, but La traviata (1853) was a disappointment at its premiere, though a year later, with minor revisions, it was warmly received. After an extended excursion to Paris in 1853, Verdi returned to Busseto and turned out Simon Boccanegra (1857) and Un ballo in maschera (1859), both embroiling him in politics, an activity in which he was already immersed, since he served in the local parliament and later in national parliament as senator. In St. Petersburg, Verdi's La forza del destino premiered in 1862 and Don Carlos in Paris in 1867.

Having relocated to Genoa, Verdi composed Aida in the years 1870-1871. Its Cairo premiere in 1871 was a success, but the composer then gave up opera, at least for a time. His String Quartet (1873) and Requiem (1874) showed his creative juices were still very much alive. His next opera, Otello, came finally in 1886, Verdi working slowly and getting sidetracked revising earlier operas. One more opera came from his pen, Falstaff, in 1893, which scored a stunning success. Critical opinion has it that his last three operas are his finest, that the elderly composer became bolder and more imaginative in his later years.

In these later years, Verdi also worked to found a hospital and, in Milan, a home for retired musicians. In 1897, Giuseppina Verdi died and the composer thereafter lived at the Grand Hotel in Milan, finding companionship with retired soprano Teresa Stolz. A year later, his Quatro pezzi sacri premiered in Paris. This would be the composer's last work. On January 21, 1901, Verdi suffered a stroke and died six days later. ~ Robert Cummings