I can rarely tell, by listening, whether music is created by a band consisting of few or many members, and I love music made by bands of various sizes. When I think about bands with only two members, though, I get a kind of lonely feeling. Three members seems like it would invite conflict and make it likely that someone is left out. Five seems chaotic--more of a troupe than a band. Four is just right. I have no idea what these associations say about me.