Question: What English operatic tenor sang the duet "O soave fanciulla " from Puccini's opera "La bohème" with Mary Plazas?

Context articles: La Bohème (2009 film)
La Bohème (2008 film)
Frank Guarrera
Charles Craig (tenor)
Francesco Dominici (operatic tenor)
La bohème
Alfred Piccaver
La Bohème (1988 film)
Peter Auty
Plácido Domingo discography

La Bohème is a 2009 short film from directed by Werner Herzog.
 The four-minute film features images of harsh life in Ethiopia set to the duet "O soave fanciulla " from Puccini's opera "La bohème", sung by Peter Auty and Mary Plazas.
 It was part of a series of short films commissioned by Sky Arts and English National Opera.
La bohème (also known as "La bohème de Puccini") is a 2008 Austrian-German film of an opera directed by Robert Dornhelm.
 It is based on Giacomo Puccini's "La bohème".
Frank Guarrera (December 3, 1923 – November 23, 2007) was an Italian-American lyric baritone who enjoyed a long and distinguished career at the Metropolitan Opera, singing with the company for a total of 680 performances.
 He performed 35 different roles at the Met, mostly from the Italian and French repertories, from 1948 through 1976.
 His most frequent assignments at the house were as Escamillo in Georges Bizet's "Carmen", Marcello in Giacomo Puccini's "La Bohème", Valentin in Charles Gounod's "Faust", and Ping in Puccini's "Turandot".
 He was also an admired interpreter of Mozart roles, establishing himself in the parts of both Guglielmo and Don Alfonso in "Così fan tutte" and Count Almaviva in "Le nozze di Figaro".
 Most of the roles he portrayed were from the lyric repertoire, such as the title role in Tchaikovsky's "Eugene Onegin", but he also sang some heavier roles at the Met like Amonasro in "Aïda", Jack Rance in "La fanciulla del West" and Il conte di Luna in "Il trovatore".
Charles James Craig (3 December 191923 January 1997) was an English operatic tenor.
 He received early encouragement from Sir Thomas Beecham, and sang in his 1952 recording of "A Mass of Life" by Frederick Delius.
 He was known as one of "the most Italianate of English operatic tenors".
 From 1957 to 1980 he performed leading tenor roles at London's Royal Opera House and English National Opera.
 One of his most famous roles was Verdi's Otello, which he sang in Chicago, Vienna, Berlin, Naples, Munich, Venice, Salzburg, Turin, Lisbon, Düsseldorf.
Francesco Dominici (1885–1968) was an Italian operatic tenor particularly admired for his acting in comedic roles.
 He made his professional opera debut as Fernando in Donizetti's "La favorite" at the Teatro Donizetti in Bergamo in 1914.
 He created the role of Prunier in the original 1917 production of Puccini's "La rondine" at the Grand Théâtre de Monte Carlo, a role which he performed at many other opera houses including the Teatro Comunale di Bologna.
 Over the next several years he played mostly leading roles at the Teatro Costanzi in Rome including Rodolfo in Puccini's "La Bohème", Fenton in Verdi's "Falstaff", and the Ernesto in Donizetti's "Don Pasquale".
 In the early 1920s he joined the roster at La Scala where he began playing more buffo roles than leading roles.
 In 1921, he sang the role of doctor Cajus in Verdi's Falstaff at La Scala and in 1922 was Filipeto in the company's first production of Ermanno Wolf-Ferrari's "I quattro rusteghi".
 In 1926 he created the role of Emperor Altoum in the original production of Puccini's "Turandot" at La Scala.
 In 1929 he went on tour with La Scala to Germany.
 Other roles that Dominici performed at La Scala include David in Wagner's "Die Meistersinger von Nürnberg", Monostatos in Mozart's "The Magic Flute", and the Neipperg in Umberto Giordano's "Madame Sans-Gêne".
 In 1931 he moved to Cuba, where he taught music for many years.
 Dominici died in Havana in 1968.
La bohème (] , ] ) is an opera in four acts, composed by Giacomo Puccini to an Italian libretto by Luigi Illica and Giuseppe Giacosa, based on "Scènes de la vie de bohème" by Henri Murger.
 The world premiere performance of "La bohème" was in Turin on 1 February 1896 at the Teatro Regio, conducted by the young Arturo Toscanini; its U.S. premiere took place the following year, 1897, in Los Angeles.
 Since then, "La bohème" has become part of the standard Italian opera repertory and is one of the most frequently performed operas worldwide.
Alfred Piccaver (5 February 1884 - 23 September 1958) was a British-American operatic tenor.
 He was particularly noted for his performances as Rodolfo in Giacomo Puccini's "La bohème" and other popular mainstream operatic roles.
La bohème (also known as "La bohème de Puccini") is a 1988 Italian-French film of an opera directed by Luigi Comencini.
 It is based on Giacomo Puccini's "La bohème".
Peter Robert Auty (born 4 November 1969) is an English operatic tenor who has worked with most of the major opera companies in Britain and a number of companies in continental Europe.
Plácido Domingo has made hundreds of opera performances, music albums, and concert recordings throughout his career as an operatic tenor.
 From his first operatic leading role as Alfredo in "La traviata" in 1961, his major debuts continued in swift succession: "Tosca" at the Hamburg State Opera and "Don Carlos" at the Vienna State Opera in 1967; "Adriana Lecouvreur" at the Metropolitan Opera, "Turandot" in Verona Arena and "La bohème" in San Francisco in 1969; "La Gioconda" in 1970; "Tosca" in Royal Opera House, Covent Garden in 1971; "La bohème" at the Bavarian State Opera in 1972; "Il trovatore" at the Paris Opéra in 1973 and "Don Carlo" at the Salzburg Festival in 1975, "Parsifal" in 1992 at the Bayreuth Festival; and the list continues until today; the same role is often recorded more than once.