Understanding exhaust notes

Hermitns

engine configuration, # of cylinders, total airflow (e.g. horizontally opposed or flat motors, 90* V, inline or even Volkswagons W motors....and the exotic 12cyls of Ferarri) plus exhaust pulse scavanging. I dont know if anyone here has the search skills to find this but....back in the 80's or 90's some NASCAR teams ran 180 degree headers (I cant explain why they're called that) but the cars sounded like they were reving much higher. Folks said it sounded like a swarm of bees compared to the standard configuration.
Ever wonder why Harley sounds so powerful but they can't make any horsepower?
(all you H-D lovers remember...the V-wad is a PORSCHE designed motor). V configuration and a tractor motor firing sequence.
I rode a 130 HP VTX 1800 for 4 years. V twin configuration...didn't sound or run like a Harley.

2nd question I believe the Meistershaft is the highest pitch I've heard.

http://www.youtube.com/watch?v=MSZTb...eature=related