But still, people do like that frame of reference. So give the reader a nice, concise three or four sentence description of the sound. You don't have to dress it up to much. If you cover traditional blues standards, then there's really not all that much to say. If you do something a little more innovative, then describe appropriately.
Most musicians like to think they're doing something fairly original.
But noting some of your band's influences can provide some more of that frame of reference I've been talking about. Be smart about this though. At least that gave me something to think about. Let the reader know what you've got on the burner for the next couple months. These are all good types of things to talk about.