So, I have a tubular cam lock (looks pretty much like this
Copal is resin that's hardened, but not hard enough to be called amber. Depends on the variety, some are hard enough to be made into beads, while others are grinded and use a acrylic or polymer binder to bind them together.
Usually lyrics + the music, unless I'm listening to a Harry Potter soundtrack by John Williams. Then I'm just thinking about the music or the books. I always listen to music until I fall asleep.
