SLightly off topic: I would like to add that the two times I've seen the Frogs, they did have a guy on bass. The shows were pure, beautiful chaos, but the Frogs could play the hell out of their instruments. One show ended when an audience member came on stage and sang 'Brown Sugar' with them, unplanned, and the second ended when a drunk woman heckled them so much they finally just called it quits, after about 20 minutes of brilliant onstage insanity.
Yeah they toured with a bassist but most of the recorded material is just drums, guitar, some keyboards.
Kinda like Ween. another band that didn't have a bassist (in their early years).