Common mistake
Believing major and minor chords share no notes
It sounds like this
“Major and minor chords must be made of completely different notes.”
Why it’s wrong
C major and C minor share two of their three notes; only the middle one moves.
The lesson that fixes it
Cognosc spots mistakes like this.
When you explain something in your own words, Cognosc can tell exactly which mistake you’re making — not just that you’re wrong — and gives you a short lesson to fix that one thing.