Green notes: right hand, blue notes: left hand. Preview played right in your browser with the app's real piano (lightweight version). Inside Pianovera: full multi-layer sound, fingering display and Wait mode.
Chopin banned this piece from publication. His friend Fontana printed it anyway, six years after the composer's death, and pianists have been grateful and terrified ever since. The Fantaisie-Impromptu MIDI lays its central problem bare: the right hand thinks in fours, the left in threes, all the time.
That four-against-three is a wall for most players, then one day it clicks. Our honest advice: don't count it, superimpose it. Drill each hand until it's a reflex, then let them coexist; the brain eventually hears one single texture instead of two grids. The D-flat middle section rewards you with a genuine song before the final storm.
Fantaisie-Impromptu Op. 66: the first notes
Right hand, in letter names (C4 = middle C): G#4 A4 G#4 G4 G#4 C#5 E5 D#5 C#5 D#5 C#5 C5 C#5 E5 G#5 G#4 A4 G#4 G4 G#4 C#5 E5 D#5 C#5… The rest scrolls in the preview above, with the fingering, and the sheet music PDF has the whole piece.
Play Fantaisie-Impromptu Op. 66 on the virtual piano
Here are the Fantaisie-Impromptu Op. 66 virtual piano notes, in computer keyboard letters: the first 2 bars of the melody. One key per note, read left to right; dark keys are the sharps, and a thin line marks each bar. The melody sounds an octave lower than written, so it fits on the keyboard.
Letters for a QWERTY keyboardYour keyboard: 30 notes
HNHBHLE;L;LQLE6
HNHBHLE;L;LQLE6
▶ Play on the virtual pianoThe piano opens with this piece loaded: the key to play lights up and waits for you.
What you'll be working on
Four against three: both hands bulletproof on their own first
Pearled sixteenths even in the tight positions
The central cantabile (the theme everyone has borrowed since)
The coda and its hidden left-hand melody
Playing Fantaisie-Impromptu Op. 66 on piano with Pianovera
This is where Pianovera's A·B loop becomes vital: four bars on repeat, right hand alone, left alone, then together at 50%. Slowed down, the falling notes physically show how the two rhythmic grids interlock.
Open Fantaisie-Impromptu Op. 66 in Pianovera: the notes fall toward an 88-key virtual piano keyboard, each hand gets its color, and Wait mode is there if you're starting out. On a PC, it's falling notes piano software for Windows, with video export up to 4K.
Free, with no time limit and no ads: 30 pieces (10 in full, 20 in a simplified version), the first 10 lessons and 10 minutes of 3D hands (then 15 seconds per piece). Premium opens all 651 pieces.
Download the Fantaisie-Impromptu Op. 66 MIDI and sheet music
The work itself is in the public domain, and this MIDI engraving was placed in the public domain by its typesetter on the Mutopia Project. Use it freely, videos included.
About this piece
Is Fantaisie-Impromptu Op. 66 hard to play on piano?
We rate it advanced: 3014 notes over 4:14, spanning G1 to E7, with sustain pedal marks. The first thing to work on: four against three: both hands bulletproof on their own first.
Where can I get the sheet music for Fantaisie-Impromptu Op. 66?
Right on this page: the "View the sheet music" button opens the PDF (238 KB), engraved by the Mutopia Project from the same source as the MIDI file, Public domain license. View it, print it, keep it.
Is the Fantaisie-Impromptu Op. 66 MIDI file really free?
Yes. Frédéric Chopin died more than 70 years ago, so the work (1834) is public domain. This MIDI engraving is public domain too: download it and use it freely, videos included.
