Re: Bluegrass without guitar?
Buck White had a "banjoless" bluegrass band for a while, with his daughters and Jerry Douglas on resonator guitar. Sounded fine to me.
This discussion is going to get -- has already gotten -- into the debate between the "strict constructionists" who think it ain't bluegrass if it doesn't have the standard instrumentation, and those "bluegrass activists" or whatever who think it's OK to try some different instrumental mixes, just to see what happens.
Since I lean a bit toward the latter camp (don't mind someone playing harmonica now and then, e.g.), let me say that if one could come up with a way to fill in the chordal mid-range, even with individual instrument lines such as cello -- or could even consider something like an octave mandolin! -- one could make a "bluegrass-like" sound sans guitar.
Not that I'd prefer that. A well-played bluegrass guitar is a great instrument, and a band lacking one would have to be pretty inventive and virtuosic to make up for its absence. But I'd say, "do-able."
Gibsn: '54 F5 3pt F2 A-N Custm K1 m'cello
Natl Triolian Dobro mando
Victoria b-back Merrill alumnm b-back
Stradolin Vega banjolin
Sobell'dola Washburn b-back'dola
Eastmn: 615'dola 805 m'cello
Flatiron 3K OM