The chorusmaster Diego Fasolis studied at the Zurich Conservatory and Musikhochschule with Erich Vollenwyder (organ), Jürg Wintschger (piano), Carol Smith (singing) and Klaus Knall (conducting), obtaining four diplomas with various distinctions. He studied organ and improvisation in Paris with Gaston Litaize and early music performance with Michael Radulescu in Cremona. His international prizes include the Stresa first prize, the first prize and scholarship of the Migros-Göhner Foundation, and the Hegar Prize, and he was a finalist in the Geneva Competition.

As an organist he has performed several times the complete works of Bach, Buxtehude, Mozart, Mendelssohn, Franck and Liszt. He has written music for films and video, with works for organ and for soloists, choir and orchestra. He worked from 1986 as a musician and conductor with RTSI and from 1993 as permanent conductor of the vocal and instrumental groups of Radio Televisione Svizzera, and from 1998 of I Barocchisti, a Baroque orchestra with early instruments. He regularly conducts the Svizzera Italiana Orchestra and the best Swiss orchestras, and has appeared as a guest conductor with leading international ensembles, including the Berlin RIAS Chamber Choir, the Sonatori de la Gioiosa Marca, Concerto Palatino, Orchestra and Chorus of the Verona Arena, the Orchestra and Chorus of La Scala, Milan, and of the Rome and Bologna Operas.

Diego Fasolis enjoys an international reputation. He has recorded over fifty CDs for Arts, Chandos, Claves, BBC, EMI, Amadeus, Divox, and Naxos, and is known as a conductor, teacher and member of international juries.