Born in Switzerland, Fasolis studied music at the Zurich Conservatory and the Zurich Musikhochschule. His most important teachers at these schools included Jürg Vintschger (piano), Erich Vollenwyder (organ), Carol Smith (voice), and Klaus Knall (conducting). Fasolis later studied organ in Paris with Gaston Litaize
and had further instruction in Cremona with Michael Radulescu, who schooled him in early music performance.
Fasolis' first important post came in 1986 when he began a long relationship with the Radiotelevisione Svizzera di Lingua Italiana (RTSI) as a musician and part-time conductor. In 1993 he was appointed permanent conductor there, a post that included oversight and conducting of several vocal and instrumental ensembles serving under the RTSI, among which was the Coro della Radio Svizzera. In 1995 Fasolis founded Ensemble Vanitas in Lugano, a historic-instrument group largely devoted to Baroque repertory. He has remained the ensemble's principal conductor over the years. In 1998 Fasolis accepted the appointment of principal conductor of another historic-instrument ensemble committed to Baroque music, I Barocchisti
In the new century Fasolis has remained active not only with I Barocchisti
, but as a freelance conductor with several European ensembles, including the Orchestra
and Chorus of La Scala
, the Berlin RIAS-Chamber Choir
, and other groups in Italy, Germany, and Switzerland. Among his more recordings are a pair of 2007 releases on the Arts Music label containing the Bach
Brandenburg Concertos and the Tripelkonzert, BWV 1044, and a 2011 recording of Vivaldi
's opera Farnace for Virgin Classics.