For certain kinds of concerts, you know the deal going in. There will be aging.

That's the way it goes with rock 'n' roll in particular, when the bands and their fans stick with each other as they grow old together. The lessons about the time's passing are sobering. But there also is a lot to learn about how to react to aging — on concert stages and in life in general.

I was reminded of that earlier this month when we went to see The Guess Who at Jones Beach Theater. The group was a favorite from our teen years,  but the band's mainstays had not toured together in more than two decades and had not released any new music together since 1975. Our memories were carved in half-century-old vinyl.

It was a beautiful evening with just enough of a breeze to carry the heat of the day out to sea, making room for waves of cool nostalgia. We settled into our seats with anticipation but also genuine wonder. We knew........

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