Five independent error tests
| What went wrong | Deliberately wrong example | Correct comparison | What to listen for |
|---|---|---|---|
| Wrong chord quality | C–E♭–G when C is written |
C–E–G | The middle note moves up a semitone |
| Lost root | Bass E3 over C by mistake |
Bass C3 over C | The sense of root/home changes |
| Rushed change | G starts on bar 1 beat 4 | G starts on bar 2 beat 1 | Count continuity rather than speed |
| Sticky sustain | Hold pedal through C→F | Release/re-engage around change | Residual C tones muddy F |
| Note omission | Play Am as A–E only | Play A–C–E | The minor third C defines quality |
Record one variable at a time
For each case, play the incorrect version deliberately and then the corrected version slowly. Label the audio wrong and correct so your ear can compare. Never rely on a fabricated demo or imagine that text confirms what your recording sounded like; the exercise is about your own observation.
A fast troubleshooting flow
First speak the chord symbol. Second name its notes. Third play right hand alone without pedal. Fourth add the correct bass root. Fifth count a four-beat bar. Finally add pedal only if the dry version is clean. This order locates the source of most basic mistakes before you increase tempo.
When outside feedback helps
If you cannot identify which hand causes the issue, regularly feel pain, or continue making the same unexplained error after several careful recordings, bring a short clip to a qualified teacher. A course can provide sequence and demonstrations but cannot guarantee individualized diagnosis. See chord spellings, changes and pedal use.
Sources and scope
Published theory and the original exercises above are editorial work, not a first-hand product test. Merchant statements were checked 28 October 2026. Music examples are original text arrangements; independent musician review remains a required prepublication check.