While we commonly think of the Octet as the pinnacle of the chamber music repertoire, Mendelssohn (who composed it at the ripe old age of 16) did not view it as a chamber composition. In fact, he viewed it as a condensed symphony. This is reflected in both the structure of the piece and the inscription that Mendelssohn placed at the beginning of the manuscript: The Octet must be played in the style of a symphony in all parts; the pianos and fortes must be precisely differentiated and be more sharply accentuated than is ordinarily done in pieces of this type. These words clearly place the Octet within a symphonic framework, which is helpful when thinking about how to listen to it.
For instance, the structure of the Octet unfolds like a symphony. You will hear a brilliant first movement allegro leading to a lush andante. The third movement, a scherzo, frolics through chamber-music-like textures before the presto finale explodes into a fully symphonic finale. You’ll also hear Mendelssohn utilizing the full range of expressive qualities available to this combination of instruments, much like a symphony might do. You can also sense Mendelssohn’s movement away from the Classical traditions of his predecessors (Mozart, Haydn, etc.) an into the Romantic style of his contemporaries. This can be heard in the dreamy, enchanted quality in the second movement and the frenetic restlessness of the third movement (of which he wrote that it “is to be played staccato and pianissimo… the trills passing away with the quickness of lightning”).
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