Mutt Lange density layer starting patterns

This article builds upon the concept of the three layers of a song. If you are not aware of this concept please read this article here first.
Mutt Lange is possibly the greatest producer in the history of popular music. He brought fame and fortune to bands like AC/DC, Def Leppard, Nickelback and his ex wife Shania Twain. You can see a list of some of his monster hit albums at http://www.muttlange.net/. Mutt followed some basic density patterns for his songs that can easily be discerned.
On Highway to Hell, the startup pattern is join pattern. A join pattern is when different members are added, or join, as the song progresses.

The theme of the song is stated by the guitar. The drummer joins into the song next and the vocalist joins next. Notice that he uses the exact same pattern in the early Def Leppard hit "Photograph."


In "Man, I Feel Like A Woman" (http://www.youtube.com/watch?v=QHbdC1U1EaE -sorry embedding was not allowed), he does the same pattern with a slight twist in that Shania has a spoken part at the beginning before the join pattern gets in place.
Foreigner's Urgent is not exactly a join pattern but an "add" pattern because the new instruments, guitar in this case, add a new theme to the mix when they appear.

On the Car's "Magic", Lange uses a "Bang and Back Off" starting pattern. The full band play, plus a keyboard riff, starts the song off but the band is pulled back when the verse comes into play.

In the Car's Drive, there is a slight add, but it can also be seen a "Bang and Back off" as the theme dies when the lyric enters.

Look for more Mutt Lange posts in the future as this is just a tiny examination of his considerable catalog.