These circumstances in his life are mentioned here not only because of their interest, but because they explain some aspects of his music. Schumann was of a brooding disposition, intensely introspective. Compared with Chopin, his music lacks iridescence and shows a want of brilliancy. This will be immediately apparent if at a recital a pianist places the Schumann pieces after a Chopin group, as he is apt to do for the sake of the very contrast which they afford. But if Schumann's compositions are wanting in superficially attractive brightness, they more than make up for it in their profounder characteristics. All through them one seems to hear a deep-sounding tone. One might say that his works for the keyboard instrument are pianoforte music for the viola, and for that reason they appear to me so expressive and so appealing. The harmonies are wonderfully compact. One feels after striking a Schumann chord like stiffening the fingers in order to hold it down more firmly, keep a grip on it, and let it sound to its last echo.
In Schumann's music the sensitive listener will find a curious blending of poet, bourgeois, and philosopher. He had the higher fancy, the warmth of the poet, a bourgeois love of what was intimate and homely, and the introspection of the philosopher. Sometimes he is so introspective that he appears to me actually to be burrowing in harmony like a mole. The melodies are interwoven; sometimes the upper voice flutters lightly down upon "contrapuntal collisions in the bass"; frequently his rhythms are syncopated; melodies are superimposed upon each other; he uses "imitations," canonic figuration, and often by introducing a single note foreign to the scale, suddenly lowers or lifts an entire passage. There are interior voices in his music, half suppressed, yet making themselves heard now and then above the principal melody. He loves "anticipations"--advancing a single note or a few notes of the harmony and then filling in the sustained tone or tones with what was at first lacking. These characteristics are so marked that it is as easy to recognize Schumann as it is to distinguish Chopin in the first few bars of a work by either. Each is _sui generis_, each has his own hallmark, and it is a great thing in music, as in other arts, to have one's product so personal that there can be no mistaking whose it is.