Building a Defensible Claim About a Piece

When I sit down with a score, the first question I ask myself is: what in the music actually creates the effect I'm feeling? Anyone can say a piece feels "sad" or "triumphant" — but as a musician and analyst, I need to point to the score and show exactly why. An interpretive argument is a defensible claim about what a piece expresses or how it achieves its effect, backed by specific musical evidence. I always draw from three evidence layers: 1. HARMONY — Chord quality, harmonic rhythm, and cadences shape emotional weight. A prolonged deceptive cadence (V→vi instead of V→I) denies resolution and creates tension or longing. A sudden shift to the parallel minor (C major → C minor) darkens the texture in an instant. 2. FORM — Where a moment falls in the structure matters enormously. In sonata form, the three sections are the Exposition, the Development, and the Recapitulation. When the opening theme group returns in the Recapitulation, it carries different weight than its first appearance in the Exposition, because the listener has been through the instability of the Development. In ternary (ABA) form, we use letter names for sections — A, B, A — but that is a distinct schema, not the same as sonata form's terms. Mixing up the vocabulary would muddy your analysis. 3. EXPRESSIVE MARKINGS — Composers encode intent in notation. Tempo markings tell you the speed (Adagio = slow); expression or character qualifiers add an emotional color (doloroso = sorrowful). When you see a compound like Adagio doloroso, you're reading both a tempo marking and an expression marking together. Other expressive evidence includes dynamics (pp vs. ff), articulation (legato vs. staccato), and phrasing slurs. Here is the formula I use every time: CLAIM + EVIDENCE + REASONING. Weak claim: "This passage sounds sad." Strong claim (hypothetical passage): "The composer undermines any sense of arrival by replacing the expected authentic cadence with a deceptive cadence to vi, while sustaining a pp dynamic and a falling half-step motive in the melody — together these three elements project unresolved grief rather than acceptance." Notice how the strong claim draws on all three evidence layers and explains the connection. One warning I always give students: expressive markings alone cannot carry an argument. A composer can write dolce over a harmonically stable, formally centered passage — your argument must show how multiple layers reinforce each other. My layered analysis order: map the form first, then trace the harmonic motion, then read the markings, then synthesize. That sequence keeps one dramatic dynamic marking from distorting your reading of the whole piece.