Visit Chaise Lounge’s band website, and you’ll be greeted with the phrase, “Equal parts dry wit and dry martini.” This catchy expression sums up the vibe of this Washington, D.C., jazz ensemble. Fronted by vocalist Marilyn Older, the six-piece group specializes in finger-snapping standards and original tunes that evoke smoky lounges where the gin fizzes and sidecars flow. These cool cats captivate listeners with well-known numbers such as “My Baby Just Cares for Me,” as heard on their 2016 album, The Lock & the Key, during three Green Mountain State concerts.