Marcello Fantoni began to study the classical guitar at the age of eight. Under the guidance of Paolo Paolini, he graduated from the Conservatory of Milan, earning full marks and honours in interpretation.
He won a scholarship of the Sergio Dragoni Foundation as well as the European Competition announced by the Bèrben Publishing House.
For a brief period he studied composition with Danilo Lorenzini and Davide Anzaghi.
In 1966 he took advanced courses with Eliot Fisk at Salzburg's Mozarteum, and then with Leo Brouwer in Córdoba, and with Oscar Ghiglia at Siena’s Accademia Chigiana, where he won a scholarship and a merit diploma.
He won prizes at several national and international competitions (National Competition Agimus Varenna, International Competition Città di Lodi, National Competition Giulio Rospigliosi, National Competition Città di Racconigi, International Competition Rovere D'Oro, Genoa International Competition).
The Rome ARAM Association hailed him as an emerging talent, inviting him to play during their concert season.
He has collaborated with the Giuseppe Verdi Symphony Orchestra in the recording of some works by Bruno Maderna.
He has recorded, for the label IRTEMDocumenti, a contemporary work by the composer Davide Gualtieri.
In 2004 the Sinfonica music editor published his solo guitar piece Perpetuum, omaggio a Egberto Gismonti.
He followed the master classes held by Eduardo Fernández (2005), Timo Koronen (2005), Leo Brouwer (2006) and Pavel Steidel (2006) at the Conservatory of Florence, where, in 2007, he earned, with full marks an honours, a master degree in interpretation under the guidance of Paolo Paolini and Alfonso Borghese.
Always interested in all music genres,  Fantoni performs both as a soloist and in different chamber ensembles, in Italy and abroad, playing a repertoire that spans from Renaissance to contemporary music, as well as crossover music.
In 2012 the label DYNAMIC has realesed his CD  Works For Guitar entirely dedicated to the music for solo guitar of the Madrid composer Tomàs Marco (‘onata de Fuego’,‘2 Tarots’and the first recording CD ‘resto Mormorando’.
Recently, as composer, Sinfonica Music Editor published Music For Flute and Guitar of Marcello Fantoni  his own composition for flute and guitar including  the recorded CD of the same songs: Omaggio a Michel Petrucciani, Omaggio a Manuel de Falla and Sonata Semplice (Canzone Semplice-Aria-Choro Semplice).
Web: http://www.marcellofantoni.org/bio.php (2013)