Directed by Daniel Constantineau, Galileo (formerly Orchester symphonique de la Vallée-du-Haut-Saint-Laurent) is the only professional classical music company in Montérégie-Ouest, on the southwestern outskirts of Greater Montreal.

Chamber formation composed of 15 to 55 instrumentalists depending on the repertoire it tackles, its main objective is to produce living symphonic music in a territory which is generally deprived of it. It does this on period instruments, which harmonizes wonderfully with the historical character of the region.Moreover, Galileo is an NPO registered as a charitable organization and as such promotes training and musical development. of its public in general and young people in particular.

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Since the beginning of its activities in October 2010, the Orchestra has performed 23 times in various agglomerations of Montérégie-Ouest, as well as in Dorval and Saint-Jérôme. His productions testify to the quality of his artistic work and his regional roots in that they respectively led him to the recording of baroque works by André Gagnon by the prestigious ATMA label in July 2015, to the obtaining of his first grants from Musicaction, Canada Council for the Arts, Conseil des arts et des lettres du Québec, Conseil des arts et de la culture de Vaudreuil-Soulanges and MRC de Vaudreuil-Soulanges since 2015, to his participation in the Seigneuriales of Vaudreuil-Dorion since from 2016 to 2021, nominations at the Gala de l'ADISQ 2016, Prix Opus 2017, 2020 and 2021 and at the reception of a first Prix Opus in January 2020 (Best concert - Multiple repertoire), for “Operas!”, produced in collaboration with the Atelier lyrique de l'Opéra de Montréal (photo).