Are non-functioning secondary dominants the same as deceptive secondary dominants?

1. Do secondary dominants always resolve?
2. What is a functional secondary dominant chord?
3. Are secondary dominants always sevenths?
4. How do you identify secondary dominants?

Do secondary dominants always resolve?

Secondary dominants often do resolve to their own tonic, but they can also resolve deceptively, an action sometimes hidden with traditional Roman-numeral analysis.

What is a functional secondary dominant chord?

A secondary dominant is any chord that has the dominant function over another chord that is not the tonic of the song. ... They are auxiliary chords, they only serve to “prepare” a progression for some other degree of the key.

Are secondary dominants always sevenths?

No, secondary dominants aren't required to be seventh chords. They can be plain triads (e.g. V/vi). They also aren't required to be major or have a major triad--I've heard plenty of vii°7/V chords, and those are diminished 7th chords.

How do you identify secondary dominants?

Secondary dominants work in the same way, in that they typically precede a specific chord. Because of that trait, the way to find a secondary dominant is to look at the chord it's approaching. Secondary dominants most commonly occur in the approach of the V (dominant) chord in a piece.