April 6 1974, SoCal's Ontario Motor Speedway transformed into something near mythical - The California Jam. it drew over 200,000 fans and became the center of the Rock n Roll universe, headlined by Deep Purple, Emerson, Lake & Palmer, Black Sabbath, Black Oak Arkansas plus top opening bands of lighter fare setting records for being the highest-grossing festival, with the loudest amplification, and most efficiently orchestrated spectacle of that time. ABC televised the event, turning a countercultural gathering into a national broadcast bonanza. the previous month of building a pioneering infrastructure signaled something new: Rock as an industry, capable of filling and exiting speedways within 24hrs.
then there was the moment everyone will always talk about; Deep Purple’s Ritchie Blackmore detonating the performance after a blistering run through Smoke on the Water, he smashed his guitar into a camera lens, triggered overly-explosive charges behind a fake amp, setting half the stage ablaze as he scampered from police onto an awaiting helicopter. it was rock theater written in fire. Arthur Brown was no doubt proud. then ELP had to follow that, and pulled it off admirably with Keith's pyrotechnics and spinning Grand Piano as Greg Lake chewed gum while singing like a God while fireworks sent us off. we made it home by midnite.
in hindsight, like Monterey Pop, Woodstock, and sadly Altamont, California Jam I was definitive of its own time. for better or worse, we'd turned a significant corner as a music-loving society, and soon the decline from this peak ensued. they pulled off CJ II in fine style a few years later and that was the end of an era.