He continued his studies at the Conservatoire National Supérieur de Musique of Paris where his teachers included Michel Bouvard and Olivier Latry for organ, Thierry Escaich and Philippe Lefebvre for improvisation.
Vexo has performed extensively throughout Europe, the United States, Canada, Australia, New Zealand and Russia.
He has appeared as a featured artist in numerous international music festivals and organ series in cities such as Atlanta, Auckland, Dallas, Düsseldorf, Los Angeles, Melbourne, Montreal, Moscow, New York, Porto, Riga and Vienna.
His performances have also included notable venues such as the Basilica of the National Shrine in Washington DC, the Wanamaker Grand Court in Philadelphia, the KKL in Lucerne, the St. Mary’s Cathedral in Sydney and the Yekaterinburg Philharmonic Hall.
He has been invited to teach organ master classes for the American Guild of Organists and at prestigious institutions including Rice University in Houston, the Curtis Institute of Music in Philadelphia, Westminster Choir College in Princeton and Aveiro University (Portugal).