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Rhythm Tutor: Clap the Rhythm, See Every Hit on the Beat
A metronome plus 25 rhythm patterns to clap or tap, from steady quarter notes to syncopated sixteenths. Rhythm Tutor listens for your claps, scores every hit against the beat grid in milliseconds, and names each mistake as it happens: rushed, dragged, between beats, or missed.
Rhythm Tutor is a free web app that teaches rhythm. It pairs a metronome with 25 clapping patterns across 8 levels, from quarter notes up to syncopated sixteenths in 2/4, 3/4, 4/4 and 6/8 time. An onset detector running in an AudioWorklet hears every clap and scores it against the beat grid in milliseconds: on the beat, rushed, dragged, between beats, or missed, each with a named hint and a practical fix like "Wait for the click: let it arrive, then clap with it." Quiz mode tests you on patterns you have never practised, so the score is honest. Ranks, badges, day streaks, and confetti keep you practising. Everything runs on your device: no audio is recorded, uploaded, or sent anywhere. It is a home practice tool, not a music teacher.
Open Rhythm Tutor
Eight levels, 25 patterns
Each pattern is one bar to clap or tap along with the metronome, with a practice tip on every card:
- Level 1, quarter notes: one clap on every click, in 4/4, 2/4 and 3/4.
- Level 2, quarters and rests: some clicks are silent: count them, do not clap them.
- Level 3, eighth notes: two even claps per click: 1 and 2 and.
- Level 4, waltz and 6/8: feel three, and feel two groups of three.
- Level 5, off-beats: clap on the and, between the clicks.
- Level 6, sixteenth notes: four claps per click: 1 e and a.
- Level 7, syncopation: accents that land off the beat, like the tresillo and the Charleston.
- Level 8, syncopated sixteenths: the hardest grooves, including a son clave.
Passing a pattern unlocks the next level, so the ladder only climbs when your timing is actually ready.
Every hit scored in milliseconds
A tiny onset detector runs inside an AudioWorklet, right next to the audio hardware, so clap detection stays fast and sample-accurate. Each detected hit is matched to the nearest note on the beat grid and given a verdict: on the beat, rushed (early), dragged (late), between beats, or missed. Every verdict comes with a named hint plus a concrete fix: rushed gets "Wait for the click: let it arrive, then clap with it", dragged gets "Get ready earlier: start your clap as the click begins", between beats gets "Count the subdivisions out loud (1 e and a)", and missed gets "Keep counting through the silent beats". After a take, the summary names your most common mistake with its fix, and your dashboard tracks average timing error across takes.
Quiz mode is an honest test
Quiz patterns are kept completely separate from practice patterns, so quiz mode always scores rhythms you have never rehearsed. Each quiz runs two fresh patterns per level with no tips on screen: a real check of whether the timing stuck. Wrong answers always show the named hint, never just a score, and a perfect quiz earns its own badge.
Ranks, badges and streaks
Points climb through four ranks: Steady Starter, Groove Finder, Pocket Player, and Rhythm Master. Badges mark the milestones: First Groove, Dead Center (a perfect take, every hit on the beat), Locked In (16 hits in a row on the beat), Sixteenth Hero, Syncopation Star, Pattern Collector (all 25 patterns), Perfect Quiz, and a 7-day streak. Confetti and chimes celebrate wins, and you can switch them off. Practice stays the core: the game elements are seasoning.
Your audio never leaves your device
Microphone audio is measured and immediately discarded. Nothing is recorded, uploaded, or shared. The page security policy blocks connections to every outside server, and the built-in Offline proof panel shows a live log of every network request the page makes, lets you simulate a fully offline session, shows exactly what is stored on your device, and deletes it all with one button. The app works offline after your first visit. The microphone runs only while you are on a practice screen.
Start clapping
Training something else? Pitch Trainer coaches singing in tune, Tone Trainer coaches Mandarin tones, and Sound Alerts teaches you to see everyday sounds, all the same private, on-device way.
This is a home practice tool, not a teacher, therapist or safety device. Everything runs on your device: no video, audio or images are sent anywhere. Feedback is automatic and can be wrong. For real instruction, learn from a qualified music teacher, linked on the Resources page.
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Frequently asked questions
What is Rhythm Tutor?
A free web app that teaches rhythm with a metronome and 25 clapping patterns across 8 levels. An onset detector hears every clap and scores it against the beat grid in milliseconds, naming each mistake as rushed, dragged, between beats, or missed, with a practical fix. Everything runs on your device. It is a home practice tool, not a music teacher.
How does it hear my claps?
A tiny onset detector runs inside an AudioWorklet, next to the audio hardware for sample-accurate timing. It listens for the sharp attack of each clap or tap, matches it to the nearest note on the beat grid, and scores the timing error in milliseconds.
What do rushed and dragged mean?
Rushed means your clap landed before the beat; dragged means it landed after. Each verdict comes with a named hint and a concrete fix: rushed gets "Wait for the click: let it arrive, then clap with it", dragged gets "Get ready earlier: start your clap as the click begins".
What are the 8 levels?
Level 1 quarter notes, level 2 quarters and rests, level 3 eighth notes, level 4 waltz and 6/8, level 5 off-beats, level 6 sixteenth notes, level 7 syncopation, and level 8 syncopated sixteenths. Passing a pattern unlocks the next level.
What is quiz mode?
Quiz mode scores patterns you have never practised: quiz patterns are kept separate from practice patterns, with no tips on screen. It is an honest test of whether the timing stuck. Wrong answers always show the named hint, never just a score.
Can I tap instead of clapping?
Yes. Tap on the table, snap your fingers, or tap the on-screen pad: anything with a sharp attack works. The detector listens for the attack, not the sound's tone.
Does it work offline?
Yes, after your first visit. The app and the detector are saved on your device, so everything works with no network. The Offline proof panel even lets you simulate a fully offline session.
Is my audio recorded or uploaded?
No. Microphone audio is measured on your device and immediately discarded. Nothing is recorded, uploaded, or shared. The page security policy blocks connections to every outside server.
Can I delete my data?
Yes. Open Offline proof on the home page and press Delete all my data, or clear progress from the dashboard. Everything is stored only in your browser, on your device.
How do the ranks and badges work?
Points climb through four ranks: Steady Starter, Groove Finder, Pocket Player, and Rhythm Master. Badges mark milestones like a perfect take, 16 hits in a row on the beat, all 25 patterns, and a 7-day practice streak.
Is this a substitute for a music teacher?
No. It is a home practice tool, not a teacher, therapist, or safety device. Feedback is automatic and can be wrong. For real instruction, learn from a qualified music teacher, linked on the app's Resources page.
Who is it for?
Anyone learning rhythm: beginning musicians, drummers, dancers, singers, or anyone who wants an honest metronome that tells them exactly where their timing drifts.