The largest rhythm-keeping force in the free world, the US Army Field Band deploys to the stage of the Count Basie Theatre on Monday, for a free public concert.

In its assembled glory, it’s a formidable force — and its many crack commando units and surgical-strike teams allow it to perform missions that range from a Dixieland septet and harp-flute duo, to a Son Tropical big band and diplomatic corps of Woodwind Ambassadors. When  The United States Army Field Band takes the stage of the Count Basie Theatre on Monday, July 28, it will be in the form of the organization that has thrilled and inspired audiences “from Boston to Baghdad” for over 60 years.

Scheduled for 7:30 pm, the concert finds the 60-plus members of the Field Band (under the command of Colonel Timothy J. Holtan) performing a selection of American music — from patriotic and military evergreens, to big-band pop standards and a selection of styles from this nation’s awesome sonic spectrum — in the way that “fosters the support of the American people for members of the armed forces and supports diplomatic efforts around the world.” And, as a thank-you for that support, they’ll be performing absolutely free of charge.

Seating is general admission, but tickets are still required for the event that’s co-presented by radio station Thunder 106. Take it here to reserve.