Maria Letizia Grosselli began her studies of singing and piano with Nicola Conci at the children's "I Minipolifonici di Trento". She graduated at the age of 19 from the Conservatory “Bonporti” in Trento (opera singing), and then she studied at the Accademia Internazionale di Musica in Milan, with Vincenzo Manno. She attended master classes of Regina Resnik and Renata Scotto at the Accademia di Santa Cecilia in Rome. She pursued postgraduate studies at the Accademia Chigiana in Siena, the Opera Studio of the Teatro Regio in Parma and Accademia di Alto Perfezionamento per Cantanti Lirici of the Fondazione Arena di Verona.
She was among the finalists at the X International Contest for young opera singers Riccardo Zandonai in Riva del Garda and won the scholarship for the best Italian singer at International Contest “Toti Dal Monte” in Treviso.
In 2010 she recorded a CD of Riccardo Zandonai’s songs entitled “Terra di sogni”, and in summer of the same year she had a successful debut at the prestigious Opera Festival in Arena di Verona, singing Liù in Turandot directed by Franco Zeffirelli. She also sang in Arena di Verona the roles of Anna in Nabucco, Kate in Madama Butterfly and Sacerdotessa in Aida. She was Violetta in La Traviata, Leonora in La Forza del destino, Aida in Aida, Cio-Cio San in Madama Butterfly, Mimì in La Bohème, Nella in Gianni Schicchi, Micaela in Carmen. Bila je i Violeta u Travijati, Leonora u Moći sudbine, Aida u Aidi, Ćo Ćo San u Madam Baterflaj, Mimi u Boemima, Nela u Đaniju Skikiju, Mikaela u Karmen, and Lady Billows in Albert Herring and The Spirit of the boy in Curlew River by Benjamin Britten.
She has so far appeared in various Italian theaters, such as Teatro del Maggio Musicale Fiorentino, Teatro dei Rinnovati Siena, Teatro Regio Parma, Teatro Verdi Pisa and Teatro Sociale Trento, theatres in Cremona, Brescia, Pavia and Como. In 2011 she sang solo soprano part in Verdi's Requiem in St Petersburg. She was invited by the Fondazione Arena di Verona to take part in important concerts in Italy and abroad (Brussels, Madrid, London, Berlin, Paris). She is a frequent guest of the Istituto Italiano di Cultura all over the world: in Australia, Belgium, England, Greece, Turkey, Guatemala, Columbia, Hungary. In Belgium she sang at the prestigious Palais des Beaux Arts in Brussels. She gave tours of Japan and Croatia.

Italian pianist Eddi de Nadai graduated in piano and harpsichord from the Benedetto Marcello Conservatory in Venice and continued his studies with Konstantin Bogino and Marian Mika (piano) and with Erik Werba, Elly Ameling and Rudolph Jansen (chamber vocal repertory). He also studied conducting at the European Accademy in Vicenca and at the Accademia Filarmonica in Bologna.
He was engaged as rehearser at the La Fenice Theatre in Venice, the Giuseppe Verdi Opera in Trieste, the State Opera in Hanover, the Experimental Theatre in Spoleto and at the Izmir Opera (Turkey). He is a regular collaborator of the Trento Theatre.
He had his conducting debut with the Pécs Symphony Orchestra in Hungary and in 2003 he conducted the Rossini's Il barbiere di Siviglia, Bellini's Norma, Verdi’s Rigoletto and numerous concerts at the Izmir Opera. He collaborated with many Italian orchestras, and he also performed in concert and in opera in Romania, Ucrain, Albania, Uzbekistan, Turkey, Japan. He is the Artistic Director of the ensemble Musica Pura, which is  dedicated to the repertoire of the Twentieth century.
Eddi de Nadai gave a series of Italian repertoire seminars at the Wesleyan College di Macon (the USA), at the Izmir Conservatory and has been lecturing for many years at the Vocal Art Symposium in Spoleto. Since 2002 he has been the official accompanist at the International Vocal and Chamber Competition in Gorizia.
He appeared in major European countries, the USA and in the Middle East working with Luciana D'Intino, Katia Ricciarelli, Ferruccio Furlanetto, Leo Nucci, Maria Chiara, Laura Polverelli, Daniella Mazzucato and Banjamino Prior.
He recorded for RAI as well as for the Swedish and Romanian Radio. In a duet with pianist Franco Calabretto he recorded a CD with the four-handed piano pieces of Gaetano Donizetti for RivoAlto, released the Paraphrases and Fantasies on the operatic themes by Liszt, Thalberg and Czerny and made a CD with a chamber version of Orff's Carmina Burana under the baton of Lászlo Heltay for SicutSol. He is a lecturer at the Music Conservatory in Venezia.