As regards his style Franz is thus an absolutely modern composer, else his songs would be mere scholarly experiments, having no inner life. But his melodies are evidently designed for a polyphonic treatment. They need to be supplemented by other parts, not merely by a simple chord accompaniment, although this is also used occasionally. Yet with all these finesses, and the difficulties of such a complicated style, most of the songs have quite a popular character in the noblest meaning of the word. Only a small number are what the Germans term "durchcomponirt," (composed through), a large majority are in the strophe form. Yet the composer understands just how in the most wonderful, scarcely perceptible, and often extremely delicate manner, to do justice to the changing moods of the different strophes. Quite a number of the compositions are true folk-songs, the poems being old German, Suabian, Swiss, Bohemian and Scotch. Franz's favorites among prominent poets, are Heine, Lenau, Eichendorff, Burns and Osterwald, while secondary are Goethe, Rückert, Geibel, Möricke and Roquette. The subjects treated by him are many and varied; there are many beautiful songs of nature in various deeply affecting, concentrated moods, songs of night and stars, of water and waves, weather and storm, autumn and spring, forest and heath; also songs of love in all the phases which a heart may experience, from the first sweet, chaste dawn, to the exultation of final happiness; the woe of a broken heart, and of parting and death; nor are merry, dancing or humorous songs missing. Yet there are no ballads.