I don't mean without A bassist. That's most bands. Some great bands have survived after losing their original bassist-Stones, Kinks, Ramones, Metallica, etc. Other bands are unimaginable without their bassist. I will list a few examples that come to my mind The Who (the hell do they think they are calling themselves the Who sans Entwistle and Moon?). Led Zep (Page/Plant...hahahaha). Yes ("NO" without Chris Squire) Which other bands would be irreparably damaged without their bassist? Edit: I mean just for their playing, not for their singing or songwriting.