Are there any cases where the mediant chord has dominant function?

1. What chords are dominant function?
2. What is the function of a mediant chord?
3. Is a III chord dominant?
4. Which Roman numeral has a dominant function?

What chords are dominant function?

Dominant triads, seventh chords, and ninth chords typically have dominant function. Leading-tone triads and seventh chords may also have dominant function.

What is the function of a mediant chord?

The mediant chord functions as a very weak pre-dominant — so weak that it almost always leads to stronger pre-dominant chords, rarely progressing directly to V. One of its most important uses is to harmonize 7 as it descends in the melody.

Is a III chord dominant?

The iii chord contains E-G-B, and the dominant V chord contains G-B-D; these share the root and third of the V chord, so the iii chord can function as a dominant chord.

Which Roman numeral has a dominant function?

Comparison of the terminologies