The second movement of Beethoven’s Sonata No. 23, Op. 57, presents a quiet chordal theme followed by increasingly active variations. Its D-flat-major sound contrasts with the outer movements. Short chords, flowing sixteenths, and later thirty-second notes gradually transform the same basic material before the original texture returns. The movement ends with two striking arpeggiated chords and leads directly into the finale.

Chordal theme: The opening is soft and measured, with a connected upper line supported by lower chords and a moving bass. Dotted figures give shape to the otherwise steady pulse. Both halves of the theme are repeated. Small changes in the inner parts and bass keep the texture moving even when the upper notes are held. The sound remains restrained, with the melody emerging from within the chord writing rather than standing above a separate running accompaniment.

First variation: The upper part becomes more rhythmically separated, using short eighth-note chords and rests against longer connected lower notes. The bass and inner voices move through changing registers, and occasional shorter groups add activity between the chord attacks. Repeats and alternate endings preserve the theme’s broad two-part outline while changing the way each phrase approaches its continuation.

Second and later variations: Sixteenth notes now flow in the right hand while the lower part carries slower melodic movement. The repeated phrases again use alternate endings. A later variation, marked poco più mosso, introduces thirty-second-note patterns in the left hand beneath a quieter upper melody. The running texture then passes to the right hand, with lower chords and melodic notes supporting it. Written-out continuations move through wider registers, and crescendos briefly increase the intensity without abandoning the theme’s recognizable shape.

Return and transition: A gradual broadening restores the original pace and chordal texture. The bass becomes especially expressive beneath the upper notes. Slowing phrases and a brief increase in strength lead to the final two rolled chords, each held with a fermata. The first is very soft; the last is forceful and marked lunga. The printed attacca carries the music straight into the next movement.

Interesting fact: Near the return of the chordal theme, an editorial note compares the expressive lower melody to a cello, drawing attention to the bass as a singing voice.