A loose canon

Our family is big(and I do mean BIG)into classical music. While Pachelbel's canon is not our favorite, due to huge over-playing for weddings, we have thoroughly enjoyed the following rendition by the excellent Los Angeles Guitar Quartet.

Someone in our household found this video a few days ago, and we have listened to it 3 times so far:) I think you will like it too...

I counted 6 different music styles in this video. Does anyone hear more than that?