The sketches of the greater part of Beethoven’s songs, after the Bonn period, are preserved, and prove with what extreme care he wrought out his melodies. The sketchbook analysed by Nottebohm affords a curious illustration in Matthison’s “Opferlied,” the melody being written out in full not less than six times, the theme in substance remaining unchanged. Absolute correctness of accent, emphasis, rhythm--of prosody, in short--was with him a leading object; and various papers, as well as the Conversation Books, attest his familiarity with metrical signs and his scrupulous obedience to metrical laws. Since the shameful mutilation and dispersion of Beethoven’s manuscripts at the time of their sale, probably no one person has been able to trace and examine half of the sketchbooks; still, enough have come under observation during the researches for this work to establish with reasonable certainty these points: I. That each sketchbook was filled in pretty regular course from beginning to end before a new one was taken. II. That had the collection been kept entire it would have afforded the means of determining with a good degree of certainty the chronology of most of his instrumental works, after coming to Vienna, as to their first conception and studies--excluding, of course, those which, in one form or another, he brought with him from Bonn. III. That the more important vocal compositions were studied separately. IV. That only from the sketchbooks can an adequate idea of the vast fertility of Beethoven’s genius be formed. They are in music, like Hawthorne’s “Notebooks” in literature, the record of a never ceasing flow of new thoughts and ideas, until death sealed the fountain forever. There are themes and hints, never used, for all kinds of instrumental compositions, from the trifles, which he called “Bagatelles,” to symphonies, evidently intended to be as different from those we know as they are from each other; and these hints are in such numbers, that those which can be traced in the published works are perhaps much the smaller proportion of the whole. Whoever has the will and opportunity to devote an hour or two to an examination of a few of these monuments of Beethoven’s inventive genius, will easily comprehend the remark which he made near the close of his life: “It seems to me that I have just begun to compose!”[90] SYMPTOMS OF APPROACHING DEAFNESS