Trainer
Practice the transitions that need you most.
Build an adaptive round, mark each change honestly, and turn every miss into the next useful drill.
Round format3 seconds · 10 chordsStandard · E A D G B E · no capoDefaults stay at 3 seconds and 10 chords. Accuracy still comes first.
Level 1: Open Chords
Comfortable open shapes to build speed.
0/10ReadyRandom level
Weekly rotation and quick presets
No practice rotation is assigned for today.
Speed ladder8s rungTwo fully rated clean rounds unlock the next rung.
3D left-hand guide
See how to fret C
The existing interactive hand engine is available before, during, and after a round. It is downloaded only when you open it.
Previous
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Current chord
Press start
Hands-free keyboard: Space pauses/resumes · ← reviews previous · → advances · ↓ repeats the current chord.
Clean streak0
Best streak0
Best clean round0
Fastest successful pace—
Most improvedKeep rating
Recoveries used0
Adaptive practice path
Carry today's evidence into the next rehearsal.
These suggestions are calculated from capped local ratings, fatigue notes, and the current song goal.
Fretting-hand view
Watch fingertip order and thumb release
No unlicensed video is bundled. These angle-specific storyboards provide safe shot/cue placeholders for locally supplied coaching media.No barre in the current shape. Keep the thumb light and use only enough fingertip pressure for a clear note.
Technique cue only; the browser does not measure physical pressure.Move a clean transition into a song section or a common progression while its hand motion is fresh.
No imported song set; a common progression will be used.Choose a date to turn the weekly path into a deadline-aware plan.
Reconstructs the local sequence around each flagged change using its planned pace; it does not claim to replay recorded audio.
Mark a change “Needs work” or “Missed” to build a replay window.
Practice the same change on a different beat without rebuilding the round.
Relaxation is unchanged; keep the next goal small.
Say or enter the next chord before revealing the route.
A · standard: Use the diagrammed fingering for C.
B · alternate: Use tiny pressure releases between strums so the hand stays loose.
Counts last only for this open Trainer session.Rehearsal readiness
Turn practice evidence into a usable plan.
All of these controls stay local and are calculated only when this screen renders.
Transitions 0%Rhythm 50%Relaxation 100%Readiness 0%
Combines clean transition ratings, rhythm evidence, tension signals, and the five-item rehearsal checklist.Complete a round to create this week's and month's local baseline.
Open shapeCMajor
A-shape barreCMajor
2nd inversionC/GMajor
E-shape barreCMajor
1st inversion • E bassC/EMajor
I sound in the key of C.
Keep the root clear for the bass player, then choose the suggested rhythm role.Start a round to see harmonic movement and likely finger pivots.
Keep verse and chorus spacing even until more transition evidence is available.
Weak transitions currently detected: 0. This affects guidance only; your saved song order is unchanged.Balanced open-chord movement and medium string spacing. · Standard · E A D G B E
Select a current chord to reveal a compatible fragment.
A Missed rating pauses the round here so you can rebuild the beat and choose where to rejoin.
Today's guided session0/5 min0 rounds · 0 clean changes
Current chord success (separate from transitions)Select a chord · No ratings yet
Practice calendar
T·F·S·S·M·T·W·
Backups include capped local ratings, history, records, and notes.
Session readiness
Set up the guitar, the goal, and the room.
Standard · E A D G B E
This is a listening checklist, not pitch detection. Compare each string with your own tuner or reference and mark it manually.
0/6 manually checkedRehearsal-ready route
Use rehearsal count-in, stage mode, and a familiar song set before adding speed. Rate a short round to establish a personal weak transition.
Current practice · Standard · E A D G B EStart a real 60-second run inside the Trainer timer. Mark each clean shape and move on; only Clean ratings count.
Use this short visual cue before a barre-heavy round: open the hand, soften the thumb, then settle lightly.
These bars are a visual timing prompt only. The recording is not analyzed.
Static reference
Latest take placeholder
Record a take to show a non-analytical visual fingerprint.
No rest-day signal yet. This advisory uses only the capped local practice history and tension notes.
Based on at most 60 local practice days and 30 session notes.Personal milestonesFirst clean barre round Seven-day practice streak First song ready
A fully clean round containing a barre shape.
Not earned yetSeven consecutive local practice dates.
Not earned yetEvery item on the song-readiness checklist completed.
Not earned yetPractice lab
See the pattern, then solve the movement.
strong
No tracked transitions yet.
improving
No tracked transitions yet.
weak
No tracked transitions yet.
Rate a few transitions to unlock a replay.
Roll the barre finger slightly, place it close behind fret 8, then test strings 1–6 one at a time.
No nearby capo alternative is documented for the current chord.
0/3
Export or import a defensive, size-capped JSON file. No account, upload, or remote collaboration is used.
Teacher challenges stay on this device unless you export a file.Practice companion
Capture the attempt, spot the pattern, and leave with a plan.
Record up to 45 seconds or 8 MB. Takes stay only in this tab and are never uploaded.
Nothing is recorded until you choose Start recording and approve browser permission.No local takes yet. Record twice to compare timing, clarity, and tension.
Log what happened so recurring causes remain separate from chord accuracy.
Most frequent: No patterns logged yet.
No discomfort marked. Keep pressure light and take normal breaks.
Download the current chord route, strumming cue, coach notes, tuning label (Standard · E A D G B E), and capo reminder for another offline session.
Teacher challenges stay on this device unless you export a file.- 1Chord shapesNext focus
- 2Clean transitionsBuilding
- 3Steady rhythmBuilding
- 4Song readinessBuilding
- 5PerformanceBuilding
Rate transitions to make the pathway more personal.
Complete and save a round to create the first comparison.
Chord Hero · Practice sheet
Random level
10 changes · 3s pace · No strumming prompt · Standard · E A D G B E · no capoC
G
D
Em
Am
E
A
Goals
☐ Clear shapes ☐ Clean transitions ☐ Steady rhythm ☐ Full run-through
Coach notes
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Practice notes
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Rehearsal handoff
Song order: Random level
Setup: Standard · E A D G B E · no capo · 3s change pace
Difficult transitions: None flagged yet
Emergency restart points: Find the current beat, rejoin the current chord, then continue.
Chord history
Ratings stay attached to the exact sequence item you played.
No chords yet. Start a round to begin.
Selected chord
Review any completed change without interrupting the round.
Selected