Rock 'n' roll is about fun, dancing, and teenage angst. I know, I was there. Actually, back in the 1950's and prior to this the term " Rock and Roll " was used among the African - American as a slang...
I believe both are acceptable ...but usually rock n roll is referring to music and rock and roll is referring to leaving somewhere. Personally, I always spell it Rock 'n Roll, with an apostrophe. But...
i'd say it depends on the artist. i'd say it was rock if it was by aerosmith, def leppard, rush, kansas, yes, black sabbath, led zeppelin, jimi Hendrix, tom petty, kiss, deep purple, bad company, the...
Some white guys tried to play Rhythm and Blues in the early Fifties. It came out sounding really wierd, with all these hillbilly trappings. This was the beginning of rock 'n roll.