gizmobench

Online Piano Score

This page opens with the score showing: play the piano and every note you play is written down by name, in the order you played it, ready to copy as plain text. It is a record of your own playing and not a library of music to read. There are no songs on this page, no sheet music and nothing to follow along with, because writing down what you actually pressed is a different job from handing you a piece to learn. The last 200 notes are kept while you are here, the list can be cleared at any point, and it is gone when you leave: nothing is uploaded and nothing is saved between visits.

A4 = 440 HzSine
Note
C4
Frequency
261.626 Hz
Interval from A4
-9 semitones
Octave

Nothing playing. Click a key, or press Z X C V B N M for C4 upwards and Q W E R T Y U for the octave above it.

Notes playednothing yet, the last 200 are kept
Play a key and its name is written here, in the order you played it.
  • Middle CC4, the reference every method book starts at
    261.626 Hz
  • Concert AA4, the tuning fork itself
    440.000 Hz
  • An octave upA5, exactly double, by definition
    880.000 Hz
Nothing to load. Every key is the equal-tempered frequency for its note at A4 = 440 Hz, computed rather than sampled, so the pitches are exact. It cannot know your instrument's tuning, and a browser's audio latency varies by a few milliseconds, so it is not a timing reference. The notes you play and the quiz score live in this browser and in this visit only: leaving the page forgets them, and the octave and the key labels are the only settings kept.

Common questions

What exactly does the score record?
The name of each note you play and the order you played them in, written with sharps: C4, C#4, D4 and so on, where the number is the octave and middle C is C4. Notes played from the keyboard, from a click and from the three worked examples under the piano all appear. Timing is not recorded: how long you held a key, how fast you played and any rests between notes are not in the list, so it is the sequence of pitches rather than a piece of music with a rhythm.
Can I load a song and play along with it?
No. This page carries no songs and no sheet music to read, and it does not follow or grade what you play against a piece. It writes down what you play and nothing else. If you want the notes of a particular song, they belong to whoever published them; what this page can do is capture the notes you work out yourself, so you can copy them somewhere before you forget them.
How do I save what I played?
Press Copy and the whole list goes to your clipboard as plain text, one note name after another, ready to paste into any notes app or document. There is no file, no account and no upload: the list only ever exists in this page, so if you want to keep it, copy it before you leave. Clear empties it and starts a new one.
Why does it stop at 200 notes?
So that a long session cannot grow the page without limit. Once 200 notes are down, the oldest one drops off as each new note arrives, which means the list always holds your most recent playing. The count beside the score tells you how many notes are in it.
Are the black keys written as sharps or as flats?
Always as sharps, so one pitch never appears under two names in the same list: the key between A and B is written A#4, never Bb4. They are the same pitch on an equal-tempered keyboard, and which spelling is correct depends on the key a piece is in, which this page has no way of knowing. If you are writing the notes out for a piece in a flat key, rename them as you copy them across.

Every key is the equal-tempered frequency for its note at A4 = 440 Hz, computed rather than sampled, so the pitches are exact. It cannot know your instrument's tuning, and a browser's audio latency varies by a few milliseconds, so it is not a timing reference.