I have tried many different cheap foam ear plugs. The yellow foam plugs do the best. The high end ear plugs are usually designed to block specific frequencies, etc. I can't see what Bose head phones would do. They would attempt to block all sound except sound provided by a connected sound system. I doubt the concert will have a sound feed for you to plug into.

Either way, I expect you will struggle, if not at the concert, at least the days after. You should plan for quiet time the week after the concert. Also, rest up with quiet rest before hand so your brain has maximum energy.

We often have to plan on making sacrifices after enjoying a favorite activity.

So, Who is playing ?

My best to you.