I don't know about angels singing.
I stopped smoking right after starting college and left most my stuff at my moms house.
After I graduate, get all my stuff from moms, move out, get married, move again, repack and re-unpack for a total of 10 years and opening up the battery compartment of a collectible Star Wars toy and out pops a dime bag that's at least 10 maybe 11 years old. STILL SMELLS SKUNK!!
My wife and our family friends are standing right there as this dime bag falls out of a 27 year old toy. THAT took some explaining.
I'm not sure I heard angels after 10 years of not smoking, but I heard something.
I sill wonder if there are a few bags out there that I just haven't found yet.
-RT76