Ear Warrior drills three things by sound: the distance between two notes, the quality of a chord, and the identity of a famous progression. Every round is transposed into a key you were not told, because a distance, a stack, and a loop are the same objects in every key — and a drill that leaks the key is testing something else.
What this site does not do
It draws nothing. There is no fretboard here, no keyboard, no staff, and no fingering — not because those are unimportant but because sister sites already do them properly, and another version of the same picture would be a doorway rather than a contribution. If you want to see the chord, the network has somewhere better to send you; what happens here is that you hear it first and say what it was.
It also makes no claim about absolute pitch. The skill being trained is relative, the design says so, and one of the Learn pieces explains exactly what that distinction is worth.
Why the confusion sets are published
Every leaf page on this site carries a computed list of what its subject gets mistaken for: the neighbouring distances for an interval, the qualities one moved tone away for a chord, the rotations and reorderings for a loop. None of those lists is an opinion — each is derived from the shared interval and chord tables the whole network runs on, and continuous integration recomputes them. They exist because the useful unit of practice is a pair, not an item: an answer only becomes reliable when it stops being stolen by its nearest neighbour.
Part of the Warrior Network
Ear Warrior is one of the sites sharing a music-theory layer, a design system, and a daily pick. The others explain, illustrate, and voice the material on real instruments; this one tests whether you can recognise it. The network’s hub, String Warrior, covers chords and scales on more than twenty string instruments.