Progressions by Ear
Four chords go past once. Naming which four is easy; naming which order — and which one you landed on — is the drill.
The progression drill loads here.
What this drill trains
Famous loops are common property. The same four chords turn up in three of the eight published here, and what separates them is not which chords appear but the order they arrive in and the one the music comes to rest on. That makes loop recognition a different skill from chord recognition: you can name every chord in a passage correctly and still name the wrong loop, because you tracked the parts instead of the shape.
How to run it
A round plays the loop once, in a key you were not told, at a steady tempo with no melody on top. Listen for the landing — the chord that feels like an arrival rather than a lean — and count the moves before you reach for a name. Each leaf page below lists exactly which other loops share its degree sequence, its rotation, or its chord set, so you can drill the pairs that actually collide.
Where to go next
If the individual chords are still uncertain, the chord-quality drill is the prerequisite. To work on the landing specifically, read hearing the landing chord, then come back and run the eight against each other.