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Schenkerian analysis is a method of understanding how music achieves coherence through hierarchical levels of structure, where prolongation (the extension of a single harmony across measures or phrases) creates musical architecture. Unlike surface-level harmonic analysis, Schenkerian theory reveals the deep structure underlying complex works through systematic reduction.
Begin with simple binary or ternary form pieces, then progress to sonata movements. Work through multiple analyses of the same piece to compare reduction approaches. Use graphing software or colored pencils to make hierarchies visually clear.
From Roman numeral analysis, you can label every chord in a piece: I, ii, V7, IV, and so on. This surface labeling is accurate but does not answer the question: which of these chords matter structurally, and which are subordinate elaborations? In a 32-measure chorale, if you count 87 Roman numerals, do they all have equal structural weight? Schenkerian analysis says no. Its central claim is that tonal music achieves coherence through hierarchical levels — some harmonies prolong and embellish more fundamental harmonies below the surface, and there is ultimately a single underlying structure (the Ursatz) that the entire piece elaborates.
The key concept is prolongation: the extension of a single harmony's influence across multiple measures, phrases, or even an entire movement. When you see a V chord followed by a measure of I⁶, then a passing V⁴₃, then I, then vi, then IV, then V, the Schenkerian reading might hear all of this as a prolonged tonic, with all intermediate chords as decorations of the I. The Roman numerals are all technically accurate, but they miss the forest for the trees. Prolongation says: the I at the start and the I at the end are the same structural harmony; everything in between delays the conclusion rather than replacing the tonic. This is the move from foreground (actual notes) to middleground (prolonged harmonies, voice-leading patterns that span multiple measures).
The Ursatz ("fundamental structure") is the background level — the skeleton underlying the entire piece. It has two components: the Bassbrechung (bass arpeggiation, typically I–V–I) and the Urlinie (fundamental melodic line, descending stepwise from scale degree 3, 5, or 8 down to 1). The Ursatz is not meant to appear literally in the score; it is the abstract structural skeleton that the entire foreground elaborates. Finding it requires working backward: reduce the foreground by identifying which notes are structural and which are passing, neighbor, or arpeggiating motions; then reduce the middleground by identifying which harmonies prolong more fundamental ones; at the background, only the Ursatz remains. This process is called reduction, and it is the analytical method: successively stripping away elaborations to reveal the underlying structure.
The practical skill is reading Schenkerian graphs, which use a combination of stems, beams, and slurs to indicate structural levels. Notes on stems are structural; notes as open note heads or unstemmed are subordinate. A slur indicates a prolongation — the notes under the slur are all elaborating the structural note at the slur's origin. Learning to read and construct these graphs is the core exercise. Begin with simple binary or ternary forms where the large-scale harmonic motion is clear (I to V in the first half, V to I in the second), and practice identifying which soprano notes form a stepwise descent and which are ornamental. Over time, more complex structures become legible as elaborations of simpler underlying patterns, and you develop the capacity to hear large-scale tonal architecture — not just the chord-by-chord surface, but the long-range voice-leading that binds a piece together.
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