August 7. The Lumineers loom large o'er the landscape of alt-Americana-pop, even now, four years after the platinum heights of their self-titled debut and its unavoidable hit single, "Ho Hey." Out to flaunt Cleopatra, their long-anticipated sophomore set, the Colorado clan headlines this, the second annual Speed of Sound Festival, which takes flight at the Dutchess County Airport this month. Joining them are local singer-songwriter Simone Felice, who produced Cleopatra and cowrote several of its tunes, Ryland Baxter, Swear and Shake, Nicole Atkins, and Fiction of the Future. 1pm. $45, $55, $150, $175. Wappingers Falls.