First of all Chuck Mangione is NOT smooth jazz! And either is Spyro Gyra! Are they most responisble for it, yes! But then again, so is Miles Davis. Beckenstein said himself, you don't call his band a smooth jazz band. If they're playing latin, IT IS a latin band, if they're playing blues, they're a blues band. No Spyro Gyra isn't a jazz band. That's the most outrageous thing I ever heard.
And no Led Zeppelin is NOT HEAVY METAL!!!!!!!!!! It's pointless to try and proove it to you. Same deal, they were responsible for it, but did not play it. Granted, some of their live stuff comes really close to heavy metal. Led Zeppelin's greatest influence was the blues. They were a Heavy Blues band! Got it!
And no, listening to Spyro Gyra is not like listening to Jeff Lorber! And once and for all, Spyro Gyra is not a SMOOTH JAZZ BAND!!! And the musicians in the band are some of the most talented players in the industry. You go hear Scott Ambush's bass solo, and tell me he's not the slightest bit talented. Absolutely pitiful!