I think that this pic doesn't need of technical comments. You have to "feel" it and no more ... Taken few days ago at the backstage during a Pietro Condorelli's Octet jamsession in Sorrento (south of Italy) ... They were supporters of Terence Blanchard's Sextet ... Everything you can see here, it's a precise choice. No tripod, no flash. Available light. The real technical data are: 1/20 f/ 2,2 .