of the Baroque era by Bach. It is also generally thought that many of Sweelinck's keyboard works were intended as studies for his pupils. He was also the first to use the pedal as a real fugal part. Stylistically Sweelinck's music also brings together the richness, complexity and spatial sense of Andrea and Giovanni Gabrieli, and the ornamentation and intimate forms of the English keyboard composers. In some of his works Sweelinck appears as a composer of the baroque style, with the exception of his chansons which mostly resemble the French Renaissance tradition. In formal development, especially in the use of countersubject, stretto, and organ point (pedal point), his music looks ahead to Bach (who was quite possibly familiar with Sweelinck’s music). Sweelinck was a master improviser, and acquired the informal title of the "Orpheus of Amsterdam". More than 70 of his keyboard works have survived, and many of them may be similar to the improvisations that residents of Amsterdam around 1600 were likely to have heard. In the course of his life, Sweelinck was involved with the musical liturgies of three distinctly different traditions: Catholic, the Calvinist, and Lutheran—all of which are reflected in his work. Even his vocal music, which is more conservative than his keyboard writing, shows a striking rhythmic complexity and an unusual richness of contrapuntal devices. Influence Sweelinck's only duties in Amsterdam were those of an organist. Contrary to custom, he did not play the carillon or the harpsichord on formal occasions; nor was he regularly required to produce compositions. Calvinist services did not typically include organ playing due to the belief in what is now called the Regulative Principle. The Regulative Principle restricted the elements of worship to only that which was commanded in the New Testament. However, the Consistory of Dordrecht of 1598 instructed organists to play variations on the new Genevan psalm tunes before and after the service so that the people would become familiar with them. Sweelinck was employed instead by the city itself. As he worked for Protestant magistrates the remainder of his life, it is likely that he was an adherent of Calvinism. In the 1590s three of his children were baptized in the Oude Kerk. His employment allowed him time for teaching, for which he was to become as famous as for his compositions. Sweelinck's pupils included the core of what was to become the north German organ