I had an hour to kill yesterday afternoon between dropping my bouzouki off in Arlington and my session at Tommy Doyle's. Not much going on in Cambridge on a Wednesday, it seems - compared to the weekends when Harvard Square is a-bustle with musicians and people - but still, it is important to get out there with my camera and keep the juices flowing; an activity that has mostly eluded me of late. As is often the case, this was an exercise to see how much I can make out of nothing.