20.2First listen for function, not chord name
Instead of asking:
Is this Dm or F?
first ask:
Does this sound like home, away, or tension?
Use the three-function model:
Tonic
rest/home
Usually: I, sometimes vi or iii
Predominant
movement/preparation
Usually: ii or IV
Dominant
tension wanting resolution
Usually: V, V7, vii°
This is much easier to hear than seven separate chord identities.