Had a great weekend of live music here in the Tampa area: Natalie MacMaster on Friday night and Beausoleil Saturday. Two of my favorite fiddlers and enough roots to last a while. Both bands use those funky upright basses without the doghouse body--just a neck on a stand. Guess I'm past it by now, but what's the attraction of these instruments? Is it merely the convenience of moving them around? Both sounded just fine, with that nice round sound you get from an upright bass. What disadvantages do they present?