Among the baroque opera productions she has performed are Hasse’s Solimano, Monteverdi’s Il ritorno d’Ulisse in Patria and L’incoronazione di Poppea, Händel’s Agrippina, La Resurrezione and Il Trionfo del tempo e del disinganno, Pergolesi’s L’Olimpiade, Vivaldi’s Motezuma, and theatres and festivals such as Berlin’s Staatsoper unter den Linden, Maggio Musicale Fiorentino, Bologna’s Teatro Comunale, Munich’s Bayerische Staatsoper, Festival Styriarte, Jesi’s Festival Pergolesi, Ravenna Festival, Zurich’s Opernhaus and Lisbon’s Teatro Nacional São Carlos.
Bertagnolli’s vast concert repertoire includes Mozart’s integral sacred music, performed in a multi-year cycle with the Orchestra da Camera di Mantova conducted by Umberto Benedetti Michelangeli, and encompasses works by Bach, Händel, Pergolesi and Vivaldi to Mendelssohn (Symphony no. 2), Beethoven (Symphony no. 9), and Mahler (Symphonys no. 2 and 4). Her partnership with the pianist Antonio Ballista has been particularly strong, and they have collaborated for numerous concerts and recordings.
Her most recent performances include: at Festival di Ambronay, a Vivaldi recital broadcast by Arté with Fabio Biondi and Europa Galante, the Inauguration Concert of the Rossini Opera Festival 2012, concerts in Hamburg and Poissy with Vàclav Luks and Collegium 1704, in Nuremberg with Jürgen Gross and Elbipolis, BR Classic broadcast, a Mozart-Händel concert at the Accademia Chigiana in Siena with the Orchestra da Camera di Mantova conducted by Corrado Rovaris, at the Haendel Festspiele in Halle in 2011 in Agrippina with F. Biondi, in 2012 at the Mottetti Romani with C. Astronio, in Tallinn with Andres Mustonen, Intermedi della Pellegrina in Florence at Palazzo Vecchio with F.M. Sardelli, a Vivaldi recital at Buenos Aires’ Teatro Colon with Francesco Fanna and I Suonatori della Gioiosa Marca.
It is the baroque repertoire which makes up the principal component of Gemma Bertagnolli’s enormous discography, which boasts critical recognition from Gramophone Award, Choc du Monde de la Musique, and Timbre de Platine d’Opéra International, in particular for her participation in Naïve’s Vivaldi Edition.
From 2006 to 2008 Bertagnollli taught baroque singing in several Italian conservatories. Since 2011 she has been a lecturer at Bremen’s Hochschule für Künste, holding seminars on pre-classical Italian vocality. In 2011 and 2012 she taught early music singing at summer courses at the Mozarteum Salzburg. Since 2013 she has held summer singing classes in Japan at Kusatsu’s International Academy. In Italy she has taught baroque singing at Bolzano, Trento, Frosinone, Pesaro, and Bologna conservatories and is currently teaching at the Vicenza Conservatory.