Piano Practice Online — MIDI Player, Scales, Chord Practice & Ear Training
Interval recognition, scale timing analysis, chord training, MIDI player, metronome — everything you need to practice piano, in one browser tab. No download, no install.
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The Ultimate Piano is a browser-based piano practice tool: chords, scales, sight-reading and ear training with MIDI support. You bring your own material — a MIDI file, an audio track, a YouTube video or a score — and practise against feedback that names every note and chord as you play. The scale and arpeggio drills record when each note arrives and how hard you strike it, so you can see which fingers run late instead of guessing. It runs in a desktop, laptop or tablet browser; nothing is installed, and no account is needed to try it.
Who is this piano practice tool for?
This piano practice tool is aimed at players from late beginner upwards — people who already find their way around the keys and now want to understand what they are playing. The typical case: your scales feel uneven but you cannot say where, chords arrive too slowly under your fingers, or you learn songs from videos without ever hearing the harmony underneath them.
It is not a beginner course. You choose what to open and when — the Notes and Chords drills come with levels to work through, but the order is yours. If you would rather be guided step by step through your first months at the piano, a lesson app will serve you better than this one.
What about music theory?
Music theory sits on the keys here rather than in a separate lesson. Choose a key and the app lights up the seven chords built from its scale — the ones that sound at home in that key. Each is labelled with its chord name, and above it the number of its place in the key, written the classical way as I, ii, V. That is how the chords in almost every song are described, and here you can see and hear which key each one is.
The same holds while you play. The staff can name the chord under your hands and show which of those numbered places it occupies in the current key. Scales carry the same numbering over every note, and the circle of fifths — the wheel that lays the twelve keys out by how closely they are related — is there wherever a key needs choosing.
If you want to know why two chords sit well together rather than only that they do, open the Chord Explorer, because it shows you the notes both chords share and how closely the two are related, and plays the change with the second chord placed as close to the first as possible. Passing Chords then suggests what can go between them — a step-by-step chromatic move, a chord borrowed from the key, or a closing turn.
See the chords of a key on the keyboard →Sight-Reading & Score Display
Score Display: Every note you play appears live on a grand staff with real-time chord detection and sustain pedal visualization. Note names on the keys connect what you see with what you hear.
Sight-Reading Practice: A note appears on the staff — play the right key. Train your note recognition the fastest way: read, play, repeat.
Score Display → Sight-Reading → Open sight-reading in the app →MIDI Player & Falling Notes
Load any song as a MIDI file — thousands of classical pieces are available on IMSLP. Watch the notes fall onto the keyboard, slow down the tempo, loop difficult sections. The app works out the key on its own, shows the sustain pedal, and can move the whole piece into another key if the original lies awkwardly under your hands.
Learn more → Open the MIDI player →Metronome & Rhythm
The metronome runs from 20–400 BPM and builds your timing from day one. 6 time signatures, subdivisions (quarter, eighth, triplet, sixteenth), and drum rhythms instead of a plain click. Speed Training mode steps up the BPM automatically — set a start tempo, a target, and an increment, and the metronome does the rest. A floating window you can keep open while using any other feature.
Learn more → Open the metronome →Interval, Chord & Scale Recognition
Piano ear training here means identifying intervals, chords and scales by sound alone. 12 intervals, 8 chord types, 7 scale types. Hear a sound, choose the answer, get instant feedback. Each session ends with a rating and shows how it compares with your earlier runs — skills that matter for ear training exams and daily practice alike.
Online ear training → Start ear training →Scale, Chord & Arpeggio Training
Practice scales in every key and see, note by note, when each one arrived and how hard you struck it — so you can tell which fingers run late and which hit too loudly. Chord Training asks for chord types and inversions (the same chord notes arranged in a different order) and sums up your accuracy by quality and inversion. Arpeggio Training spreads chords into a sequence and tracks accuracy, timing and touch, separately for the way up and the way down. Scale and Arpeggio Training read your playing over MIDI and need a keyboard connected; Chord Training also works with the keys on screen.
Scale Training → Chord Training → Arpeggio Training → Start scale training →Chord & Scale Explorer
Look up any chord or scale in any key and see it light up on the keys — from plain major and minor through sevenths, added notes and the stacked ones with an altered fifth, in every inversion and every key. Not a diagram: pick a chord, hear it, watch where your hand would go. Switch the same view to a key and it shows the chords that belong to it.
Learn more → Open the chord view →Piano Practice App — Play Along
Play along with material you already have. Load any MP3 or audio file with independent pitch and tempo control, or paste a YouTube URL and play along with a tutorial. Set A-B loop points, save markers, adjust playback speed from 25% to 200%. BPM and key detection included.
Audio Player → Video Player →MIDI Recorder
Record what you play as a standard MIDI file: every note, how hard you struck it, and the pedal. Download it, send it to your teacher, load it back into the MIDI Player, or open it in any music software.
Learn more →Passing Chords
Explore the chords that connect your harmony. Passing Chords shows you which chords work between any two target chords — visualized on the keyboard, playable with a click. A quick way to try other arrangements of the same chord notes, or to replace a song’s chords with ones that lead somewhere new — the move behind a lot of jazz and gospel playing.
Learn more →Sheet Music Player — Play Along to Scores
Have the sheet music? Load it as a MusicXML file — a digital score the app can read note for note — and a cursor follows the music while you play along. Turn on scoring to check your notes as you go, or switch to Wait Mode, where the cursor holds at each note until you play it, so a tricky bar never runs ahead of you. An ordinary PDF opens in the PDF Score Reader instead, which scrolls and turns the pages for you — hands-free or with a Bluetooth foot pedal.
Learn more → PDF Score Reader → Open the sheet music player →How do you practise your own pieces?
Your own pieces come in as files — MIDI, MusicXML, PDF, an audio track or a YouTube link — and the app shows you what is inside them. A MIDI file arrives as notes falling onto the keyboard, with the tempo under your control, sections you can loop and transposition into a key that suits your hands. A MusicXML score opens in the sheet music player, where a cursor follows the music while you play along; Wait Mode holds that cursor at each note until you have played it, so a hard bar never runs away from you. A PDF opens in the PDF Score Reader, which turns the pages for you — hands-free or with a Bluetooth foot pedal.
Where do you get the sheet music? MuseScore, IMSLP, the Mutopia Project, Sheet Music Direct, Musicnotes and Virtual Sheet Music all offer sheet music you can use in The Ultimate Piano.
Recordings work the same way. Load an MP3 or paste a YouTube link, slow it down without the pitch dropping with it, and set A–B points around the two bars that keep failing. For an audio file the app also works out the key and the tempo, and can hand the tempo straight to the metronome.
How do you practise a scale or a chord?
Practising a scale or a chord here is two moves: you look it up, then you drill it, and both happen in the same place. Open a scale or a chord in the theory view and it appears on the keys with note names and fingering — for scales with the Roman numeral over every degree. Switch to the matching drill and the app asks for it back, key by key, marking each answer as you go.
The drills cover notes, scales, chords, arpeggios, chord progressions and ear training. Notes and Chords are arranged in levels you can work through in order; in the others you pick the keys, chord types and inversions you want to concentrate on, so a weak spot can be drilled on its own instead of buried in a full run.
If you want to know how you played rather than only whether you hit the right key, you need a MIDI keyboard, because only a real key tells the app how hard and how early you struck it — a mouse click has no weight. Scale and Arpeggio Training are built on that and ask for a keyboard before they start; the sheet music player can score a whole piece the same way. Note Reading, Chord Training and Ear Training run on the keys on screen as well.
What do you need to get started?
You need a desktop, laptop or tablet with a current browser — nothing is installed, and no account is required to try it. Phones are not supported: below 600 pixels the app shows a notice instead of the keyboard, because the keys become too small to play accurately.
A MIDI keyboard is optional, and it is where the app is strongest. MIDI input runs through the browser’s Web MIDI support, which is available in Chrome, Edge and Opera; Safari does not offer it, and on iPad and Mac the free MIDIWeb browser provides it instead. MIDI is switched off by default — you enable it once under Settings → MIDI and tick your device, after which the keyboard responds to your touch and velocity.
