I think there's a lot to be said for terminology today, which the Harmonics have addressed, and very accurately.
I find myself agreeing with both parties, because good music is good music, no matter what's going on, but computer's effects do alter what came out of the person's mouth. T-Pain is T-Pain because of the effect, not because he's an awesome singer. So would I call him an awesome singer? No, but I would call him an awesome musical artist.
A cappella. Vocal band. Very different.
Barbershop a cappella. Contemporary a cappella. Contemporary a cappella post 1990. Also very different.
I think the Harmonics are a great vocal band. Is it "a cappella"? I might say...less so. But awesome rock music that comes out of their mouths, yes.
Bill and other producers have the job to make awesome music to the specs of the groups paying them. And it's the group who decides who they are.
Every time someone pushes a genre forward, if we call it by the name it used to be called by, we get confused. So, by Bill's chronology of popular music, it is not all Rock 'n Roll, but it is all music. And we needed new names to put on the different styles. Rock 'n Roll really derived from the Blues, with specific chord progressions and instrumentations. Awesome music prevails, but usually we give it different names so we can separate out rules for different genres.
For a cappella, or singing sans instruments, we are constantly innovating. Some are trying to keep up, and some want to stay where it's been. Both are fine, but maybe we should use names (like vocal band, vocal rock, rock a cappella) to not offend anyone else. I wouldn't call Nirvana "Rock 'n Roll" if I was talking to Elvis, but I would say it's good music, and it's part of an evolving artform, where all parts of the chain are important.
Pushing Sound- DC vocal band ('09-present)
Cornell U. Last Call ('05-'09)
Rock Beats Paper vocal band- Ithaca, NY ('06-'08)
Quiet Hours- Barbershop Quartet ('08-'09)
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