Might wanna give some credit to Marshall Amps as well, from the UKThe hard rock sound started with the electric guitar and it doesn't really matter who started it. What's important is that its evolved over the years. Case in point. The Fender Stratocaster was introduced in 1957. This clean sounding guitar has been a favorite of many famous players. Jimi Hendrix, David Gilmore, Eric Clapton, and many others made their name with this guitar. But..... The Gibson Les Paul had the double humbucking pickups and that's when Rock & Roll got mean, nasty, and downright dirty sounding. Then, 20 years later (in the mid '70's) someone comes along like Eddie Van Halen and he loves the look of the Fender but loves the sound of the Gibson. What does he do? He removes a single coil pickup on the Fender looking body, installs a humbucker, and guess what? He's got the look of the Fender Strat with the sound of the Gibson Les Paul and his legendary "Brown" sound. Who would have thought that one out? Damn, both guitars made Rock & Roll and that's why they're legendary today.
I have to agree. The British Invasion, while hard rocking, was kind of tame compared to Black Sabbath and Led Zeppelin.I think a lot of you guys are confusing 'rock' with 'hard rock', which is two very distinct different sounds. I wouldn't consider any of the 60's,70's era rock bands 'hard rock' with the exception Led Zeppelin, which is kind of a stretch, their sound was more of a hard bluesy rock, IMO 'hard rock' really didn't hit the scene till the British invasion with bands like Judas Priest, Iron Maiden and Motorhead.