The influence of Lasso upon later composers cannot well be separated from the general influence of his time, for the contrapuntal church style was the prevailing manner of composition throughout Europe. The Belgian, Italian, and German music of the time is all built on the model established by the Netherlands masters. But Lasso must be credited with having done almost as much as Palestrina toward showing how ecclesiastical music could be written in an artistic but wholly intelligible manner. The German writers who imitated him (Ludwig Senfl, Paul Gerhardt and others) in their Protestant chorals and motets led the way directly to the motets, cantatas and passion music of the Bach period, and Lasso through his influence on them contributed toward the development of the genius of the immortal Sebastian. [Illustration: W. J. Henderson] [Illustration: THE NETHERLAND MASTERS] [Illustration] THE NETHERLAND MASTERS The improvisatore nursed the infancy of both poetry and music. The latter did not grow to the stature of an art until the rude improvisations of its early guardians gave way to the systematic compositions of the Netherland masters. Systematic composition, however, presupposes the existence of three fundamental elements, none of which had assumed tangible form in the earliest days recorded in musical history. These elements are harmony, notation and measure. Huckbald, a Benedictine Monk of St. Armand in Flanders, is credited with being the first to formulate rules for harmony about 895 A. D. His ideas were crude and their results disagreeable to the modern ear. He used chiefly parallel fourths and fifths, but he employed another freer style in which a melody moved flexibly above a fixed bass--the earliest form of pedal point. Harmony was not invented by Huckbald, but he must be honored as the writer of the first treatise on the subject. The field once opened up was industriously cultivated, and by the time the era of the Netherland school began, had been productive of a rich harvest. Notation was also a plant of slow growth, but the employment of four lines in a staff, together with the spaces, was introduced by Guido of Arezzo, who died in 1050. The formulation of rules for measure was the work of Franco of Cologne, who flourished 1200 A. D. He adopted four characters to represent sounds of different lengths. These notes were the _longa_, [Illustration]; the _brevis_, [Illustration]; the _duplex longa_, [Illustration] and the _semi brevis_, [Illustration]. He also distinguished common from triple time, calling the latter "perfect." Fétis quotes from the introduction to Franco's "Ars Cantus Mensurabilis" the following words: "We propose, therefore, to set forth in this volume this same measured music. We shall not refuse to make known the good ideas of others, nor to expose their mistakes; and if we have invented anything good, we shall support it with good arguments." Fétis, however, makes this significant remark: