=Mozart and Beethoven=.—As the orchestra developed under the masters of tone and dramatic effects, Mozart, Gluck and Beethoven, so the works in oratorio form took on a different texture. In the earlier periods, the accompaniments were subordinate, the interest was centred in the voices. But as composers realized the possibilities of the constantly-improving orchestra and the opportunities for effective combinations of voices and instruments, the tendency became more and more marked to elaborate the instrumental parts and to create an ensemble more complicated and gorgeous, based upon the orchestra and its tone-color scheme rather than on pure vocal effects. =Mozart’s= “Requiem” (1791), written just before the composer’s death, brings into use the most powerful dramatic resources of orchestra and voices to portray the spirit of the “mass for the dead.” In oratorio, as in opera, =Beethoven= wrote but one work, “The Mount of Olives” (1803). The style is florid and operatic, somewhat in the style of the Italian composers; the resources of the orchestra are drawn upon more extensively than marked the methods of Haydn. The chorus is freely used, the “Hallelujah” being the strongest movement. The choral movements in the Ninth Symphony suggest what Beethoven might have done had he set himself to writing an oratorio in greater submission to the capacity of the human voice. =Spohr=.—From now on, oratorio composition is associated with the masters of instrumental music, the orchestra is drawn upon for its richest and most powerful resources to work out the emotional and dramatic qualities of the texts; it is now no longer a mere accompanying instrument; it is in the highest degree essential to the effects designed by the composer. =Ludwig Spohr= (1784-1859), a great violinist, wrote his first oratorio, “_Das Jüngste Gericht_” (The Last Judgment), when he was but twenty-eight years old. A later work produced in 1826, goes by the English name “The Last Judgment,” although that is not the literal translation of the German title _Die Letzten Dinge_. In this work we find the romantic idea clearly in evidence. The composer’s style had been developed and individualized by his long experience as player and conductor; he was a master of the resources of instrumentation, conversant both as composer and conductor with the limitations of voices—he wrote a number of operas—so that he was prepared for the creation of a work which has a character of its own. A striking feature of this oratorio is the frequent use of chromatic progressions, which is indeed a characteristic of Spohr’s writing.