=A New Art Centre=.—The development of any art, and more especially Music, requires the dominance of wealth, learning and general civilizing forces, to form an epoch-marking school. Paris for a time satisfactorily filled these conditions, and then gave place to a school, stronger and better equipped: that of the Netherlands. There were several reasons for this change in the centre of musical activity. So long as Paris was dominant in wealth and civilization, and so long as she maintained her supremacy in the intellectual fields of the Church and university, so long did she retain the centre of culture; but when her wealth became such as to produce degeneracy in the taste for pure art, and love of show rather than real worth became predominant, then her native pupils began to lose their intellectual strength, and the pupils from foreign countries began to furnish the real culture. The establishment of the Papal See at Avignon in the south of France doubtless contributed to the supremacy of France in music and the liberal arts. When the See was restored to Rome, in 1377, Paris and her school of music were relegated to the background. From this period on it was but a matter of time for these pupils to carry the centre of musical culture from Paris to a place possessing a foundation for musical growth, and a greater number of strong minded scholars, and where political conditions were favorable. The Netherlands surpassed Paris in all of these important particulars, though not at the time when the Paris School ceased to be of importance. There was a school of transition which filled the space left between the important work of Paris and the supremacy of the Netherlands; that school was the Gallo-Belgic, located northeast from Paris on the borderline between France and Belgium, Tournay being the centre. The school at Paris was occupied in acquiring material for use; the school of the Netherlands developed polyphonic music emotionally; the step from acquisition to arrangement of material was necessary before emotional development could occur, and that was the work of the Gallo-Belgic School. This school was located in the country of Hucbald and Odo, who had built up there, a little while before, a system of music which was the foundation of the polyphonic style, and which had prepared the people for a culture of greater value and importance. Thus we see that musical development followed the line of greatest preparation, and utilized the preparatory work furnished by these two men. And finally, it was a direct step toward the Netherlands which were even then beginning the struggle in which they were victorious, for supremacy in commerce, art, and music.