By the tenth anniversary of the fall of the Twin Towers, a kind of rhythm has been established regarding Sept. 11, 2001 and how our country remembers it. Radio stations and news outlets run series on how people are coping one year, five years and a decade after the attacks. First responders speak about persistent health problems and politicians pontificate about what it means to be American.

Dance has its place in this rhythm as well. An article from the Washington Post featured Sarah Skaggs, a choreographer who has won fellowships from the National Endowment for the Arts half a dozen times. Her commemorative project will be performed in Washington, D.C., Pennsylvania and New York today.

The Joyce Theater Foundation presented a concert of modern works in New York this weekend, featuring pieces by the Limon Dance Company, the Paul Taylor Dance Company, Jessica Lang and Alvin Ailey’s Matthew Rushing, accompanied by various groups of musicians.

Choreographer Jacqulyn Buglis and artist Rosella Vasta employed 100 dancers for a meditative piece performed at the Josie Robertson Plaza at Lincoln Center from 8:20 to 8:46 a.m., when American Airlines Flight 11 struck the World Trade Center.

Las Vegas is part of this, too. “God Lives in Glass” is a commemorative concert that was performed yesterday; the closing performance is today at 1:30 p.m. at UNLV’s Judy Bayley Theatre. The show features performers from “The Lion King,” “Jersey Boys,” “The Beatle’s LOVE,” “Phantom,” “Menopause: The Musical” and UNLV’s music and theater departments. Ticket proceeds will benefit Family Promise and Nevada Conservatory Theatre. Admission is $25 for the general public and $20 for students, disabled patrons and seniors. Visit the UNLV Performing Arts Center site here or call (702) 895-2787 to reserve tickets.

For dancers, emotion is a universal trait and movement is our way of expressing it. However motivating sadness and fear might be, though, artists have been creating in the name of joy with equally powerful results.