It’s frankly one of the great mysteries in music: Why isn’t the English band Elbow more popular in the United States? After all, this band of longtime friends has produced some of the most captivating sounds and albums for more than two decades. Their 2008 album, “The Seldom Seen Kid,” even won the Mercury Prize for best album in the UK – topping giants such as Radiohead, Adele, and Robert Plant & Alison Krauss. Singer Guy Garvey’s poetic longing is fully embraced by the sonic backing of the rest of Elbow, resulting in anthemic and haunting masterpieces such as “Starlings” and “One Day Like This,” while also featuring grooves like “Grounds for Divorce,” “The Loneliness of a Tower Crane Driver” and so much more.