Most agree that Cream was the first with the "metal sound" but even The Kinks, Alice Cooper's "The Spiders", The Who and Vanillia Fudge can be credited for "the sound", and of course this can all be traced back to the blues. If you take a listen some of Chuck Berry's stuff was pretty heavy, especially for the time.
Now if you were to base when Heavy Metal started by a artists think of Ronnie James Dio, he was playing in bands back in 1956! and still rocking today!
Either way this topic has some great stuff in it and got me digging through my record(yes as vinyl) collection to re-live past times and also listen a little closer to the music of yesterday and today, well unfortanely most of todays music you can't hear influance unless it is in "sampled form"
