Yes, no flashlight though.
Yes asl long as you don't disturb the performers with a flash. You can usually take pictures with the musicians before the show starts too.
Yes pictures are allowed as long as you keep your flash off.
Yes, but you can't use the flash. We were told that musicians or groups may have additional restrictions.
I had a 35mm, no flash and be real subtle. Depending on artist call in advance or find the artist entourage and ask them.
Yes, just turn off the flash. My wife recorded several songs of the concert on her smartphone but we were sitting near the back and it wasn't noticable. They might object if you make it obvious that you are recording with your phone.
Thanks! Your answer is awaiting moderation.