It seems that Barry was the only one who played the guitar. But they were
primarily a vocal group, an excellent vocal group by the way. And they wrote
their own songs.
So what would you do with many of the artists who built early rock n roll?
Toss 'em aside? Do you discount the Everly Brothers (average guitar
strummers at best), Johnny Cash (a very weak guitarist), Elvis (another
strummer who didn't even write)?
The Byrds (with the exception of McQuinn) were not allowed to play on their
first recording- Mr Tambourine Man- they weren't considered to be good
enough by the producers.
Don't get me wrong, I liked the early Bee Gees ("I Started a Joke", etc.),
but was never a huge fan. I'm just surprised that anyone would reduce their
contribution to music just because they weren't a "band'. Oops, there goes
Whitney Houston, Frank Sinatra, and Frankie Valli...