The Levitt Pavilion for the Performing Arts will hold three free concerts, two of which were postponed because of Tropical Storm Irene, during the weekend of Sept. 9-11. The performances will be followed two weeks later by a barbecue festival.

Civil Twilight, an alternative rock trio from Cape Town, will play at 8 p.m. Friday, Sept. 9. Originally slated to perform Aug. 27, the band recently played a number of summer festivals, including Bonnaroo, Bumbershoot and SummerFest.

DNR, a band with several physicians, will hold its second annual "Tribute to First Responders" concert to benefit Westport EMS at 8 p.m. Saturday, Sept. 10. The group, which founded the fundraiser to honor first responders in memory of the anniversary of 9/11, plays rock-n-roll tunes from the 1960s, 1970s and 1980s. Suggested minimum donation is $5 per person.

On Sunday, Sept. 11, the Fairfield Counts will play at 7 p.m. The swing and big-band group, originally slated to play Aug. 28 on the pavilion's closing night for the summer season, will tailor its performance in tribute to the 10th anniversary of of the terrorist attacks Sept. 11, 2001.

In keeping with the pavilion's closing-night tradition, the audience is invited to bring canned goods for the Women's Food Closet. Westport First Selectman Gordon Joseloff is scheduled to make opening remarks.

From Sept. 23 to 25, the pavilion will hold the 4th annual "Blues, Views & BBQ Festival." Presented by the Westport Downtown Merchants Association and the pavilion, the three-day event will include 12 bands, including Southside Johnny & The Asbury Jukes, and food. Tickets are on sale now.

Call the pavilion, 40 Jesup Road, at 203-226-7600 or visit www.levittpavilion.com for information.