The term "plagal cadence" typically refers to a musical phrase that often resolves from the subdominant chord (IV) to the tonic chord (I). In the context of Western music theory, the plagal cadence is commonly represented as IV-I.
If you're looking for the specific "corn progression" related to a plagal cadence, that may be a misunderstanding, as there isn't a widely recognized term "corn progression" in music theory. However, if you're referring to a common chord progression that leads to a plagal cadence, a typical example might include moving through the chords in a key, such as:
- ii (supertonic) → IV (subdominant) → I (tonic)
In this case, the progression moves through a minor chord (ii) up to the subdominant (IV) before resolving to the tonic (I).
If you meant something else by "corn progression," please clarify!