Only a handful of local bands can fill up a venue as large as Boston’s 3,500-capacity Roadrunner. Couch is one of them. The group has brought its fusion of pop, soul and funk across the country and ...

Here’s a curious fact: Every member of the fast-rising Boston band Couch (and there are a lot of them — seven, to be exact) is the younger of two siblings. What are the odds? The bandmates are brainy ...