Each year, the anniversary of the 9/11 attacks in New York, Washington, D.C., and Shanksville, Pa., is a time for reflection on a day that will forever live on in infamy. It's also a chance to see how different people cope with tragedy in different ways, and some of the ways the rock stars reflected included:

Paul McCartney, Bon Jovi, David Bowie and others performed at the ‘The Concert for New York City' 11 years ago (and McCartney documented the gig and his days leading up to it with a movie titled ‘The Love That You Make'); Neil Young penned the tune 'Let's Roll' for the heroes of Flight 93; Bruce Springsteen released the 9/11 inspired album 'The Rising.'

Last year, for the 10th anniversary, members of Rush and Aerosmith were among the artists featured on a special 9/11 commemorative edition of the syndicated radio program the Chop Shop Guitar Show. Several artists took to Twitter to share their memories of the tragic day and offer condolences for the families of the victims. And Paul Simon made an appearance at Ground Zero to perform an stirring rendition of his classic tune, ‘The Sound of Silence,’ at the 2011 Twin Towers Memorial Service.

And then there's Top 10 National Anthem Guitar Solos, a special we published that looks at various rockers' versions of 'The Star Spangled Banner.' Given the emotional impact that music can have, it seems a fitting way not just to remembering the events of that harrowing day but also the inspiring ways people reacted to the it. Tragedy of this magnitude by definition brings untold suffering to the world, but it also often guides and influences actions of hope and understanding that may alleviate just some of the pain.

Here are links to the 9/11-related features on Ultimate Classic Rock:

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