You guys try sitting down at City Hall for 20 minutes straight,
during peak hours, with trains at 2-minute intervals converging
from all four directions!
I must have heard that verdamn irritating jingle at least 40
times while I was there! 
It makes me wanna go flip table at the idiot who thought of such
a harebrained idea!!!

Think of it as one long canon. 
It's actually a nice idea, something cheery that makes people
take notice, but like a lot of ads, campaigns and jingles, it's
played to death and no one enjoys it anymore. It should be played
just once in a while.