Okay. First of all:

1. Please don't complain if this shouldn't be in The Pit.
Read the post - where should it be?

2. On to the real thing...

I love sort of digitally-put-in music in songs.
I suppose that doesn't make much sense.
The best I can explain it is:

- The introduction to Peephole, by System of a Down
- The 'clock' break-away part in Darts, by System of a Down

Are those put in afterwards?
If so, who does that stuff? Sound techs, etc?