The final Downtown Downbeat concert of 2023 features brothers Tanner and Peyton Whitt, performing as the adrenalized American alt-pop duo Rags and Riches. This two-man crew has performed more than 250 shows in 40 states, including tour support for Fitz & The Tantrums, Judah and The Lion, and Durry & Leah Marlene. They’ve won Lexington…