Hey Guys, buckle up for a slightly short interrogation. 
What’s the deal with the theory behind THE PIVOT & Sec. Dominant Chord in a particular key progression?
What is an Andalusian Cadence? How does it actually work? Cite a few instances of its usage.
Andalusian Cadence is the chord progression Am G F E. Used in a million flamenco songs.
As far as I know, someone else might be able to elaborate on the music theory behind it.
If I were you I would google this stuff.
I tried to, but it seemed to fly over above my head. There were very few web pages and the info. was very vague studded with theoretical jargons so I couldn’t help but ignore them, as it was really overwhelming to make anything out of it believe me or not. 
Did you even bother watching the video I posted. The guy explains it in simple easy to understand terms and uses a bunch of song clips you would know.
Wikipedia generally has good articles on music theory, these topics are explained pretty well there:
I’m also sure that Andalusian cadence and secondary dominants were mentioned in one of the clubs held by @Richard_close2u in relation to diatonic chords and the circle of fifths.
I confess, I’m a little perturbed.
Our ethos is to welcome all questions and to try to help, or allow others the space to come along and help.
We have many people with enough theory knowledge to answer the questions asked in post #1.
I’m supposed to be taking holiday including some time away from here, but find myself drawn back regardless. That said, it’s too late at night for me to give full answers just now.
@stitch provided a link to a useful video for examples of the Andalusian cadence.
If you know what a dominant is, what function it can perform in a chord progression, then you’re not a million miles away from being able to grasp the concept of secondary dominants. In one sentence, a non-diatonic chord used prior to a diatonic chord that is dominant to the latter, giving enhanced musical movement to the chord progression.
A pivot chord can be used when changing key. The pivot is diatonic to both and can be used as the doorway, the transition chord from one key to the other.
What an interesting video Rick. Thanks for posting it. You’ve started me off down a rabbit hole! 
Edit….and I’ve just realised that an AVoYP I did ages ago used the Andalusian Cadence.
Rick @stitch
Very interesting, I think I understood most of it to my surprise.
I am sure I have come across some of his videos before, must have a look at more, he makes things very clear.
Michael
Not yet , was swamped all through the day lol, will check that out ASAP I’m sure it’ll be useful. Thanks again.
Great reference Rick.
Every guitar player should have David Bennett in their list as essential viewing. Brilliant channel.
Cheers, Shane
Yeah, great video, Rick. I was unaware of the question asked, so I really enjoyed this post, Thanks, Rick
