Marco Faelli graduated from the University of Parma with a degree in Physics and received his diploma in orchestral conducting from the "Verdi" Conservatory in Milan. He later perfected his skills at the "Ottorino Respighi" Academy in Rome and then at the "I Pomeriggi Musicali" in Milan with Gianluigi Gelmetti. He also worked with Peter Maag, which was an important stage in his training as a conductor.
He began his artistic work at the Teatro Regio in Parma as a substitute Choir Master. From 1980 to 1986 he was the first assistant to the Choir Master and then became the second Choir Master, Maestro di sala (accompanist on the piano during rehearsals) and Chorus Master of treble voices at the Teatro alla Scala in Milan. There he collaborated with Romano Gandolfi (with whom he had been a student of choir direction) and Giulio Bertola. Afterwards he became Chorus Master at the Teatro Carlo Felice and then at the Teatro Regio in Parma and the Fondazione "Arturo Toscanini" in Parma. At the moment he is Choir Master of the Arena di Verona Foundation. He has also held the post of Choir Master with Radio France and Spanish Radio Television. As a Choir Master he has made numerous recordings, among which are the Messa da Requiem and Il Trovatore on the occasion of Verdi's Centenary.
As an Orchestra Conductor he has performed at the Teatro Comunale in Genoa and has also conducted operas, symphonic concerts and choral-symphonic concerts in Italy and abroad.
He founded the Collegium Farnesianum (a baroque orchestra which uses original instruments), the Maria Luigia Chamber Chorus and the Parma Philharmonic Chorus. With these groups, he has dedicated himself to the religious and chamber repertoire, with particular interests in areas of research, transcription, the re-proposal of unpublished operas and the philological criteria for performing.
He is Artistic Director of the "Incontri Musicali Farnesiani", an event at which baroque music is played, which has been held regularly in Parma since 1997.
He also became intensively involved in the performance of many piano concerts and has also written many essays in the musicology field.
As a teacher of interpretation of the opera score he has collaborated with the Centro di Perfezionamento (Centre of Specialisation) for opera artists of the Teatro alla Scala and with the "Città di Osimo" Opera and Choral Academy. He teaches at the Showa University in Tokyo and has been a teacher of orchestra and chorus exercises at the Parma and Mantua Conservatories.
He has been in charge as Choir Master at the Fondazione Arena untill December 2009