1. Move a line of fourths
Purpose: coordinate two lines a fourth apart. Learn each hand separately, naming the lower and upper notes before combining them.
The pairs rise C/F–D/G–E/A–F/B and return. The first three are perfect fourths; F/B is an augmented fourth, because both lines remain within C major. Read each hand’s printed fingers independently. These suggestions fit the short study, not every fourth or fifth in repertoire.
Prepare each pair and release easily between positions. Learn the ascent and return separately before joining them.
Separate the routes
Play the lower line C–D–E–F–E–D–C, then the upper line F–G–A–B–A–G–F. Use the fingers printed for that voice. Restore the pairs and listen for both voices moving together.
Next make the upper line slightly more prominent. Reverse the balance for a second pass. Keep the attack timing unchanged while changing which voice leads the sound.
Chopin’s Polonaise in A♭ major, Op. 53, offers an advanced later application of ascending fourths in its introduction. Treat it as a repertoire destination, not the expected speed or difficulty of this preparation.
Checkpoint: you can name each interval, identify which voice changes, and play the pair without an unintended roll. Shorten the pattern if one hand’s route becomes a guess.
2. Hold one voice while another moves
A written sustained note creates a different task from a succession of fully reattacked pairs. In this study, each hand holds C for a whole measure while its upper voice moves. The whole notes show the sustained voice beneath the moving quarter notes.
Begin with one hand. Sound C with the first E, retain C through the four upper notes, then release at the barline and reattack the final pair. There is no tie across the barline. The sustained voice lasts because its key stays down, not because pedal covers an early release.
Practice what remains still
Hold C quietly and move only E to G, then stop. Add F and the returning E after that small movement is dependable. The hand need not become rigid to keep one key depressed; allow the free fingers and the hand’s position to adjust within a comfortable range.
Listen for the C remaining continuous without being struck again at each upper attack. Also listen for the upper line remaining even, rather than shortening every note to protect the held key.
Apply the distinction to a score
Before practicing a double-note passage, mark which pitches are tied, which are repeated, and which actually change. A repeated-looking shape may conceal an independent inner voice. Conversely, a common pitch without a tie may need a fresh attack.
Chromatic combinations need their own fingering and spelling review. First transfer this reading method to a small passage; do not extend the printed fingers mechanically to all mixed intervals.
Checkpoint: you can maintain the written lower duration while shaping the upper line, and can distinguish a held common tone from a reattacked one.