Canon EOS 7D, 130mm, f/2.8, 1/100s, ISO 1000
Concerts I attend are mostly jazz and rarely benefit from the rich (and disturbing) lighting that rock concerts often benefit from. Trombone Shorty being on the edge between jazz and rock, his concerts have funky lights most of the time. Such lighting messes up a lot of shots but also once in a while gives you quasi-monochrome shots where the musician (Dan Oestreicher in this case) is silhouetted rather than seen. Love those shots.