 That logic, embodied in sonata form as musical development, was traditionally the unfolding of latent possibilities in given themes in rhythm, melody and harmony, either in part or in their entirety, as they were allowed to combine, separate and contrast with one another.To the resulting sense of struggle, Beethoven had added an intensity of feeling and the involvement of his audiences in that feeling, beginning from the "Eroica" Symphony to use the elements of the craft of music—melody, bass, counterpoint, rhythm and harmony—in a new synthesis of elements toward this end.Liszt attempted in the symphonic poem to extend this revitalisation of the nature of musical discourse and add to it the Romantic ideal of reconciling classical formal principles to external literary concepts.