Notes glide across the staff toward the gold line — name them before they arrive. trebly watches which notes trip you up and quietly brings them back until they stick.
LearnThe course — twenty lessons in three strands
PractiseOpen-ended. Play as long as you like, nothing is scored
Prove itGraded, fixed length, names hidden — one for each strand
Lessons
A handful of landmark notes and two mnemonics cover almost the whole staff — the rest is a couple of oddballs worth knowing by name. Each lesson unlocks once you can name every note taught so far — no rushing ahead, but you can always revisit ones you've already got.
Lesson title
💡
Try it — what note is this?
Keep going until every note below turns green — that's how you know it's stuck.
Tap along with every beat
Four beats to count you in, then tap on each one — click the circle or press the spacebar.
–
Tap 0 / 10
Tap it back
–
–
Tap this circle — or press the spacebar
0 / 5
Does this bar add up?
0 / 10
Here is C — now what's this?
0 / 10
How long is this note?
–
0 / 10
Name the note as it lands
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Named 0 / 10
The final round — this time the notes move
Same goal as every lesson: five correct on each note. The difference is that each note now drifts toward the line, so you have to read it as it travels — exactly what Training, Arcade and Test ask for.
Your piece: Amazing Grace
No counter and no clock — just play it through. A wrong note costs you nothing; it simply comes round again.
Your task
You'll place the notes yourself this time. Play it back to hear whether it's right, and Check will mark each note if you can't tell where it went wrong.
You've been through every lesson — ready to put it to use?
Songs
Simple, familiar tunes built from the notes you're learning. Name each note as it arrives — get it wrong and it just comes back around, no penalty — and you'll hear the real tune as you go. Each tune is rated from the music itself — how many letters it uses, how far apart they sit, how often it leaps rather than steps, and how varied its note lengths are. Hover a badge to see what made it that.
Pulse
Notes arrive on the beat and you name each one as it lands — in the gold zone, on the click. Everything you learned about reading, now with a clock running. Accuracy and timing are scored separately, so a run tells you which of the two is letting you down. Score 75% to open the next speed.
PulseNote 0 / 16–
Slow
0%
Right note
0
In time
0
Both
0
Notes
0
Test
Twenty notes, note names off, no hints — and no early exit, so every run is the same length and two scores mean the same thing. Score 85% or better to open the next speed. Tests don't count toward your lifetime stats: this is a measurement, not practice.
Score
0
Streak
0
Combo
×1.0
Misses left
5
Name the note before it reaches the line
Range
Speed 1
–
This session
Note 1 / 20
Song title
Final round
Every note, five times over. Where next?
Stuck on this one? Turn the note names on and keep the tune going.
These are coming thick and fast — want to take some pressure off?
That's a lot in a row — let's change something.
You're doing great — ready for a bit more challenge?
This session so far
Tap anywhere or press space to carry on
3
Tap or press space to start now
Correct!
⏸
🎉
Nice work!
You played through the whole song.
🏁
Run over
Out of lives.
🎵
You just read a piece of music
Landmarks, mnemonics, the moving stage, and now a real tune played start to finish. Two Advanced songs have been added to Songs, including this one.
🎓
That's the whole staff — reading on the move
You named every note from C4 to G5 five times over, with the notes travelling. That's the reading half of the path done.
Compose
Click the staff where you think a note belongs — it snaps to the nearest line or space and writes the letter underneath, so you find out what you actually placed. Pick a note length first; click a note you've placed to select it, then change its length or delete it. Rest writes silence of whatever length is chosen — it is a modifier like the dot, not a fifth shape. One line out? Nudge it with ↑ / ↓ instead of deleting and re-aiming — it moves a step at a time and plays the new pitch. ‹ › walk the selection along the tune, so a whole melody can be corrected note by note without clicking each one. With nothing selected, ↑ / ↓ move the note you just placed.
Task 1 of 2
Your progress
Every attempt across every mode feeds this — it's what decides which notes come back for review.
Level 10 / 100 XP
What you've covered
The twenty lessons run in three strands, and the three modes below them each keep their own record. Nothing here is hidden until you unlock it — what's left is as visible as what's done.
Note mastery
Mastery weighs recent accuracy most, then overall accuracy, then response speed — a slow-but-correct note still counts.
Dictation
You hear a bar and write it on the staff — pitch and length both marked. The starting note is named for you; everything after it you work out by ear. Replay the bar as often as you like: being able to hear it again is not cheating, it is what dictation is. Score 85% to open the next tier.
Dictation
0%
Notes placed correctly
Bars
0
Bars exactly right
0
Notes right
0
Times replayed
0
Bar by bar
What you were played, and what you wrote. Nothing is shown during a run — this is where you find out, and it is the point of the whole exercise.
Test complete
0%
Overall accuracy
Notes named
0
Correct
0
Avg response
0.0s
Best streak
0
Note-by-note
Settings
Delete this tune?
It will be removed from Songs and from the editor's list on this device. It can't be undone —
if you want to keep a copy, press Copy definition first.
Reset all progress?
This clears every note's stats, your level, XP, and arcade high score on this device. It can't be undone.