Matelda Cappelletti has established a reputation as one of Italy's foremost young stage directors. She has received particular attention for her imaginative approach to the current economic instability; her fresh and innovative productions on a limited budget have been widely praised.

In 1988-1991, as a student in singing and directing, she participated and worked full-time in the acclaimed Progetto Mozart-Da Ponte, which was taught and conducted by Claudio Desderi, one of the leading experts on Mozart operas, together with other outstanding artists at the Scuola di Musica di Fiesole. During this project, Così fan tutte, Le Nozze di Figaro and Don Giovanni were performed over 200 times each, in Italy and Europe, giving many young singers, technicians, musicians and performers a unique chance to train and begin their career. It was an amazing opportunity.
Thanks to this experience, in 1991 she was a major prize winner at the National Competition for Stage Directors run by the Laboratorio Teatrale of Alessandria. The same year she assisted Maestro Roberto Guicciardini in productions of Mozart's Le Nozze di Figaro and Così fan tutte at the Teatro Verdi in Pisa. She was responsible for the revival of both works at the Teatro Comunale in Modena and she then assisted Fabio Sparvoli in a new production of Rossini's La Pietra del paragone in Modena and Ferrara and Andrea Di Bari in a production of Don Giovanni.
From 1992-98 she was Head of Production at Teatro Verdi in Pisa where she was assistant to internationally acclaimed directors including Roberto Guicciardini, Micha Van Hoecke, Patrizia Gracis, Angelo Savelli, Paolo Pierazzini, Stefano Vizioli, Ivo Guerra, Franco Ripa Di Meana, Josè Carlos Plaza, being responsible for stagings and revivals of many productions such as Rossini's Cenerentola, the Mozart-Da Ponte triptych, Monteverdi's Incoronazione di Poppea and Orfeo, Giuseppe Verdi's Rigoletto, La Traviata, Falstaff, Macbeth, Donizetti's Elisir d'Amore, Bizet's Carmen. She worked in several theatres in Italy and abroad including: Teatro Comunale di Modena; Teatro Comunale di Ferrara; Teatro Verdi di Pisa; Teatro Rendano di Cosenza; Teatro Alighieri di Ravenna; Ravenna Festival; Teatro del Giglio di Lucca; Teatro Mascagni di Livorno; Teatro Sociale di Mantova; Teatri di Reggio Emilia; San Gimignano Summer Festival; Estate Fiesolana; Scuola di Musica of Fiesole; Teatro Regio di Torino, Teatro de La Maestranza, Seville. She was also invited to work as Italian language coach for several productions at Glyndebourne and Aldeburgh Festivals. 
Her career as opera director began in 1999. Her productions of Rossini's five one act farces, Il Signor Bruschino, L'Occasione fa il Ladro, L'Inganno Felice, La Cambiale di Matrimonio, and La Scala di Seta, conducted by Claudio Desderi were an exceptional success and were performed in numerous theatres in Italy receiving special attention from Italian television. In 2001 the cycle was performed at the Opéra Comique in Paris at the invitation of Jérộme Savary who mounted a Rossini Festival especially. This led to many more new productions of Mozart's Così, Nozze, Don Giovanni, Verdi's Falstaff, La Traviata and Rigoletto, Puccini's La Bohème, and of a number of less known, neglected or contemporary operas, such as Le Jongleur de Notre Dame by Sir Peter Maxwell Davies, La Dirindina by Scarlatti, Il Maestro di Cappella by Cimarosa, La Rita by Donizetti, La Serva Padrona, by Pergolesi, The telephone by Menotti, Un Segreto di Importanza by Sergio Rendine, Il Mondo alla Rovescia by Antonio Salieri, for Teatro Ariosto (Reggio Emilia), Teatro Borgatti (Cento), Lucania Opera Festival, Cantiere Internazionale d’Arte di Montepulciano, Teatro Puccini (Florence), Teatro Verdi (Pisa), Teatro Marrucino (Chieti), Teatro Comunale di Sassari, Teatre Principal (Palma de Mallorca), Opéra Comique (Paris) and many others.
Matelda Cappelletti was born in Florence and was educated in Italy and the USA, where her father was a Law Professor at Berkeley, Harvard and Stanford Universities. She has a degree in Modern foreign languages and literature from the Faculty of Literature and Philosophy at the University of Florence, where she graduated with full marks and honors. She studied piano with Alba Maggini and singing with Suzanne Danco. Fluent in Italian, English, and French, she also speaks some Spanish.
For several years she has taught English Language and Literature in the State Secondary Education Programme for inmates at the "Sollicciano" State Prison, in Florence.
She alternates her international activity as opera director to her commitment to teaching. At present she teaches diction, acting, and opera direction to young singers at the Scuola di Musica di Fiesole (triennio) and at the Music Conservatory in Teramo (triennio and biennio).
She lives on the hills of Fiesole and for many years she worked side by side with Maestro Claudio Desderi at the Scuola di Musica di Fiesole, where he held his renowned Master Classes for opera singers.
Considered an expert in directing Mozart operas, she was invited to give a course on Mozart scenes and roles at the prestigious Britten-Pears Young Artist Programme, in Aldeburgh, UK, in July 2010.