I’m going to profile one band this week, Boston’s Vivian Darkbloom. I had the pleasure of seeing them perform with The Airborne Toxic Event last week, in a special ‘invite only’ show, part of Jack Daniel’s Studio No. 7 series. I was going to do the review first, tell you how much I enjoyed these ace musicians and technology geeks from MIT and Harvard, and then give some background and highly recommend their upcoming show at the Middle East as part of my ‘Boston Bands This Week’ feature. But I had a problem. As soon as I began to wade through my 140 photos and 10 videos, I came to a realization: if you’re a Boston band and you’d like this particular reviewer to give you some blog love in a timely fashion (they’re playing the Middle East Upstairs Wednesday night) it might not be the best idea to perform on the same bill as Airborne Tox. So I’ll have this serve “double duty” – a few words about Vivian Darkbloom’s powerful set at the Royale to an appreciative audience, and a mini-profile/show preview.