A MIDI keyboard game: play classical piano, scored like a rhythm game
or just play · your keys already make sound
MODE
HANDS
MAX TRIES
ASSIST
TRANSITION
or just press any key on your piano
MY BEST–
PLAYS–
AVG ACC–
GRADE–
SCORE0
COMBO0
MAX0
ACC—
NOTE—
MISS0
MULTx1
RUN ★0
KEYnot sure yet
YOUR PULSE·not quantised, followed
METRE·
CHORDS READ OFF YOUR HANDSclick one to change it
FORM
AUDIO → MIDI
decoding audio…
ARRANGEMENT
VISUAL THEME
AUTO THEME PER SONG
SETTINGS
INSTRUMENT
What the notes land on. The piano is the default and the only one tuned for practice; the others reduce a piano part to what that instrument can actually play, and say how much they had to move or drop. Your keyboard still sends piano MIDI whatever is on screen.
THE KEYS
How the keys are built. Carved gives every key a real top and front face in the theme's own material · ice in aurora, sign tube in neon, ivory and ebony in grand · and a played key lights from inside it. Flat is the original keyboard.
STRUCK KEYS
How a key lights when it is played. The edge light puts the source at the top of the key and lets it fall down the body; the fill colours the whole key, which is clearest about which hand played.
THE ICE
What a falling note is made of in aurora. Drawn is the current look: twenty hand-cut sheets of ice, a near-white rim, and a body solid enough to hide the sky behind it. OLED is the original, and the one to pick for a clip shot at night: no interior, the note's own colour as its edge, two soft glow strokes round it, and a body the northern lights read straight through.
THE GROUND
What neon falls through. Both are black fields that lose every fight with a note, and they differ in what the depth is made of. Event horizon is a dark disc at the vanishing point with a razor ring and a lensed star field, and almost nothing happens in it. Grid break is a perspective floor scrolling at the speed the notes arrive, six laser rails, and a chevron gate crossing the strike line once a bar.
THE PAGE
How the score moves. Scrolling keeps the playhead still and slides the music under it. Static page holds the paper still and walks a cursor across it, then turns the page at the end of the line · which is how you actually read at a piano.
A soft ring on the notehead that is sounding now. Quieter than the other themes on purpose: notation is read, not watched, and anything that competes with the notehead makes it harder to read.
1 + 2 + 3 + 4 under the bass staff, and 1 e + a only where the bar really runs sixteenths. A bar of quarters gets 1 2 3 4, because printing subdivisions the music does not use teaches you nothing and costs four glyphs of clutter.
THE WORLD
Per theme, so tuning one never disturbs another. Void is the sky and the empty space notes fall through. Objects is the buildings, the nature and the lights in front of it.
THEME—
VOID—
OBJECTS—
LAYERS
The glow layer is what the other two are drawn on. Turn it off and the piano goes back to flat tiles, which is the fastest the renderer ever runs.
THE ROOM
SPACE
Which room the piano is standing in. CLOSE is a small treated room with the mics right over the strings, CONCERT HALL is the far end of a big one. SALON is wood panelling close enough that you hear the walls, CHURCH is stone and a long dark tail. PLATE is not a room at all: a sheet of steel, dense from the first millisecond and bright, the way records were made before anyone could afford a hall. CRYSTAL is not one either, and it is the odd one out: every space above it lets the top end die before the bottom, the way air and soft furnishings do, and CRYSTAL rings evenly from the lowest octave to the highest. Nothing built out of stone or wood does that, which is exactly why it sounds the way it does.
SIZE3200 ms
How long the room keeps ringing after a note stops. A recital hall is around 2000 to 2400 ms, a small studio nearer 600, and past about 5000 you are somewhere no building goes. Turn it off and the piano goes completely dry. The right pedal opens the room up, on your keyboard and in the pieces that were recorded with one.
ROOM12 %
How much of what you hear is the room rather than the string. SIZE is how long it rings; this is how loud it is. A concert grand recording sits near 12, which is deliberately dry. Past about 40 the room stops being behind the piano and starts being the instrument.
RING1.0 s
How long a note keeps sounding after you lift the key. Every note in the piano is a recording of a string left to ring for ten to sixteen seconds, so a short setting throws most of that recording away and a long one lets it through. It is not the sustain pedal, which holds the notes you are still playing; this is what happens to a note once you have let go of it.
WIDTHPLAYER 100
Which side of the piano you are on, and how wide it spreads. Left of centre you are at the keyboard with the bass under your left hand. Right of centre you are out in the seats, where the same instrument is the other way round. Dead centre both collapse to one point.
THE MIX
LOUDNESS
NATURAL is the piano as it plays, with nothing across it. RECORD adds what a mastering engineer would: gentle bus compression that leaves the attack alone, a trim under the rumble, and a limiter so nothing clips. Louder and denser, the way a released recording is.
AIR0.0 dB
A lift right at the top, around 8 kHz. It is where the hammer felt and the room's own sparkle live. A little opens the sound up; too much and it hisses.
LIBRARY
Waits about half a second before it starts, so scrolling the list stays quiet. Only ever one preview at a time, and it fades in and out. The play button on each row auditions whether this is on or off.
no device connected
— keys · —
KEYS ON SCREEN
AUTO fits the board to your screen so the keys stay easy to hit on phones and tablets. Prefer the whole piano? Force any size · even 88 · and the keys just get narrower. Wide songs shift octaves to fit; anything still out of reach is played for you.
COMPUTER KEYBOARD
OCTAVEC4
Home row A S D F G H J K L ; plays the white notes, the row above plays the sharps. The board shows exactly those keys and nothing else, so use OCTAVE (or Z / X) to move the whole thing up or down and reach the rest of the piano. Plug in a real MIDI keyboard and it takes over.
ACOUSTIC PIANO · MICROPHONE
OFFSET— ms
Practice and Rhythm know every note they are waiting for, so the mic only has to confirm those pitches. It can't do that in Free play, Listen or the audio importer, and it isn't offered there. While the mic listens, Klaviero plays nothing through the speakers: your piano is already the sound, and anything the app played would come back in through the mic as a false note. The metronome keeps time visually.
KEYBOARD SHORTCUTS
Off by default. Your computer keys play notes, so a stray letter firing an app action mid-piece is not what you want. The number row is always live and never affected · 1 songs, 2 instruments, 3 theme, 4 mode, 5 stats · because no digit is a piano key.
CONTROLS
Bind your keyboard's knobs, encoders or sticks to app actions. Press LEARN, then move the control. (The GT's menu/favourite buttons don't send MIDI, so they can't be mapped.)
on your piano: any black key replays · any white key goes on
INSTRUMENTS
AUTO INSTRUMENT PER SONG
LIBRARY
TITLE / COMPOSERSTYLEFORDIFFPOPVERPLAYSACC★
PROGRESS // DASHBOARD
SIGNED IN ASGUEST · local only
Unranked—
MINUTES PLAYED
RECENT PLAYS
MY SONGS
click a column to rank by it
LEVEL1
TITLEUnranked
ELO—
0AWARD PTS
Invite a friend. You both join the same stage. Earn ensemble flair as friends play.
INVITATIONS
YOUR FRIENDS
Accept an invite to become friends both ways · compare on the RANKINGS · FRIENDS board.
◆
Award
ACCOUNT
or with email
your progress stays on this device until you log in · then it syncs to your account, so you can play on any device
—
SUBSCRIPTION
Free plan · unlock the full library and unlimited songs with Premium.
ACCOUNT
Progress saves automatically after every song.
Your data & privacy
Export gives you all your data as JSON. Privacy choices reopens the analytics notice; turning analytics off takes effect straight away and reloads the page, since that is the only way to stop a tool that is already running. Deleting erases your progress and anonymises your account; invoices are kept only as long as accounting law requires.
Your public name on the leaderboards. 3–16 letters, numbers or _ . Must be unique.
KLAVIERO PREMIUM
Unlock the full library.
The full Piano Library · 4,293 classical pieces, every difficulty
MP3 to falling notes · turn any recording into a playable song
Room for 500 of your own songs, recordings and takes
Every future feature, first
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SAVE // drag the handles around the part worth keeping
0:000:00
GRAND PIANO · VOICING
TOUCH50
How much dynamic range your keyboard gets. Turn it up and a soft note goes further down, so ppp reaches ppp; turn it down and everything sits closer to mezzo-forte. In the middle you get the piece exactly as it was written.
Your privacy
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RECORDING · play your piano · press ● REC again to finish