Beethoven’s style, composers and critics agreed, could not be imitated. But his subjectivity—or, more precisely, his perceived attitude of subjectivity—could be emulated quite readily, and it became the new norm soon after his death. Critics, moreover, heard compositional subjectivity not only in new music but also in selected works of the pre-Beethovenian past. In the meantime, the increasingly public nature of musical life created a growing demand for journals, miniature scores, and composer biographies that could help listeners comprehend an instrumental repertoire that was becoming stylistically ever more diverse and technically difficult. Composer biographies, a rarity before 1800, had become commonplace by mid-century. Concert-hall audiences now assumed that the instrumental music they were hearing came from deep within the soul of the composer.