Sultans of Swing - # 78/10

Do you remember the Dire Straits song about the pro-am band The Sultans of Swing and the line ".....he's alright, he's got a daytime job."?

Here's an extreme close-up crop, homed-in on two of the excellent jazz/swing musicians playing at the landing of the Great River Race.  They were good, and swinging along well. But look at the concentration.