Amanda Forsythe has been praised by Opera News for her "light and luster", "wonderful agility and silvery top notes". In August 2007, Ms. Forsythe made her European début, singing Corinna in "Il Viaggio a Reims" at the Rossini Festival in Pesaro. According to The Stage (UK), "Amanda Forsythe, the outstanding Corinna, [was] technically in command of the role - she delivered "All'ombra ammena" flawlessly with every run in place, the legato lines seamless, the vocal line expressively shaped in support of the text. It was perfection."
Following her success in Pesaro, she was immediately engaged at the Grand Théâtre de Genève as Dalinda in Handel's "Ariodante", where she was proclaimed "the discovery of the evening" (Financial Times). She reprised this role in January 2008 at the Bayerische Staatsoper in Munich.
She returned to Pesaro in 2008 as Rosalia in Rossini's "L'Equivoco Stravagante", and also performed in concert with mezzo-soprano Joyce Didonato in duets from Bellini's "I Capuleti e i Montecchi". Also in the 2007/2008 season, Ms. Forsythe made débuts with The Calgary Philharmonic (Golijov's "Ainadamar"), L'Orquesta Sinfonica Nacional de Mexico (Mahler 2), and Gran Teatro La Fenice (Rossini arias).
In the 2008/2009 season, Ms. Forsythe performed Handel's "L'Allegro, Il Penseroso, ed il Moderato" with The Netherlands Radio Philharmonic, "Le Nozze di Figaro" (Barbarina) at the Théâtre des Champs-Élysées, "Xerxes" (Atalanta) with Boston Baroque, Blow's "Venus and Adonis" (Venus) with The Boston Early Music Festival, Handel's "Messiah" with The Baltimore Symphony and Apollo's Fire, and Monteverdi's "L'Incoronazione di Poppea" (Drusilla) with The Boston Early Music Festival.
In the 2009/2010 season, she co-starred with Ewa Podles in Opera Boston's new production of Rossini's "Tancredi", débuted with the Ulster Orchestra in Handel's "Alexander's Feast", returned to The Hartford Symphony for Brahms' Requiem, and to Boston Baroque for Handel's "Messiah. After a short maternity leave, she made her Covent Garden début as Barbarina in Mozart's "Le Nozze di Figaro", starring Soile Isokoski, Erwin Schrott, and Mariusz Kwiecien.
In the 2010/2011 season, she returned to Covent Garden as Manto in a new production of Steffani's "Niobe", conducted by Thomas Hengelbrock, and directed by Lukas Hemleb. The production was revived in December 2011 at the Grand Théâtre de Luxembourg. Also in the 2010/2011 season, she débuted with Opera d'Angers-Nantes as Nannetta in Verdi's "Falstaff", returned to The Boston Early Music Festival for the title role in Steffani's "Niobe", and to Boston Baroque for Rameau's "Les Indes Galantes".
Ms. Forsythe began the 2011/2012 season with a recording of Haydn's "Creation" with Boston Baroque for Linn records. She gave birth to her second son in November 2011, performed arias with The Handel and Haydn Society in March 2012, and made her Seattle debut in Handel's "Il Trionfo del Tempo" with Pacific Musicworks. She returned to Covent Garden in the spring for Verdi's "Falstaff". The new production was directed by Robert Carsen and conducted by Daniele Gatti; Gramophone praised her Nannetta as "meltingly beautiful".
The 2012/2013 season began with a performance and recording of Handel's "Orlando" with Vancouver Early Music. She took starring roles in Handel's "Partenope", "Apollo e Dafne", and "Teseo" with Boston Baroque, Pacific Musicworks, and Philharmonia Baroque. She also performed in concert with Apollo's Fire and Mercury Baroque, and received rave reviews for her portrayal of Princess Edilia in Handel's first opera, "Almira" with the Boston Early Music Festival. Ms. Forsythe returns to Pesaro in August 2013 to sing Jemmy in "Guillaume Tell" at the Rossini Festival. The new production by Graham Vick will be conducted by Michele Mariotti, and stars Nicola Alaimo, Marina Rebeka, and Juan Diego Florez.