What do you do about a highly reflective silver guitar strap? I did nothing in this case. Hopefully you didn't notice it until I revealed the blown highlight-causing guitar accessory to you.
Don't expect to be permitted to use flash when covering an event like this one. Fortunately, this concert had, for most of the sets, very bright lighting.
Camera and Lens Settings
200mm f/2.8 1/400s
3840 x 5670px