Jan Pieterszoon Sweelinck, who was the organist at the Oude Kerk from the age of 15 until his death, carried out his musical activity at a time in which Catholicism had been supplanted by Calvinism. This development proved decisive in the composer basing his Magnum Opus – the composition of music for all the Psalms – on the French texts of the Genevan Psalter, a metrical adaptation of the Biblical Psalms made by Clement Marot and Theodore de Beze. Possessed of a cosmopolitan spirit, Sweelinck managed to secure for his Psalms, replete with their madrigalistic influences, a significant distribution across Europe. The Gesualdo Consort Amsterdam performs here the Psalms prefacing them with the wonderful melodies composed for the Genevan Psalter by Guillaume Franc, Louis Bourgeois and Pierre Davantes (Maître Pierre). Truly a monument, consisting of more than 12 hours of music which no early music lover should lose the opportunity in acquiring.