Piano Sonata in C Minor (Op. 87) Urtext Performance Practice Edition & Harmonic Study Guide

Rooted in the modern classical keyboard selections, Piano Sonata in C Minor (Op. 87) stands as a representative work by Johann Nepomuk Hummel. The publication presents 7 pages totaling 92 notation measures, cross-checked against verified performance editions and modern engravings. Digital music repositories index this composition under ISWC `T-498.AD8.01-1`. Bearing historical opus tag Op. 87,

Set within the harmonic domain of C Minor (three flats (B♭, E♭, A♭, with B♮ raised leading tone)), the score secures tonal focus on C. Expressive depth is enhanced through secondary pivots into E-flat Major and dominant reinforcement via G Major. Harmonically, the progression Cm → Fm → Bb → Eb → G7 reaches complete architectural rest through an authentic cadential arrival on the home chord. Physically, playing in this key offers Beethoven's stormy canvas of defiance and tragedy, demanding firm fingertip arching on heavy downbeats.

Positioned within the Advanced repertoire (conservatory diploma level (ABRSM/RCM Grade 8 or Associate)), this work offers valuable training in balance and tone. Performers must concentrate on controlling multi-voiced polyphony, executing wide octave reaches without tension, and sustaining velocity. Navigating Alberti bass patterns and contrapuntal voice exchanges asks for deliberate finger weight distribution. To preserve clarity, employ syncopated pedal changes immediately following each chordal shift to avoid acoustic blurs. Study Routine: block intricate passage work into chord clusters to cement muscle memory before speeding up.

Operating within 4/4, this simple quadruple meter generates a well-proportioned metric pulse alternating primary and secondary stresses across the measure. The benchmark tempo of ♩ = 76 BPM (Moderato cantabile) conveys a poised with natural rhythmic breathing sensibility. During execution, subdivide internally with relaxed forearm weight to prevent metric stiffness across bar lines.

1. Recital Staging: This selection integrates smoothly into studio recitals, competitive festivals, and scholarly score readings.

2. Key Customization: When adjusting the native tonality of C Minor, accompanists can shift down a step to B-flat Minor for lower voice types or lift the melody into D Minor for tenors and sopranos. Woodwinds read comfortably using G Minor.

3. Licensing Status: In compliance with international copyright durations, this Urtext edition is free of copyright restrictions across all jurisdictions.