Marcus Mumford is a genuine rockstar. He goes hard. Really hard. Perhaps too hard. He bellows at the top of his lungs. He surfs the crowd. And, the band plays and plays—damn near every song.

Like the entire world, we enjoyed Mumford & Sons’ first two albums. Marcus Mumford’s work on Showtime’s Another Day, Another time: Celebrating The Music of Inside Llewyn Davis made us committed fans. And, the New Basement Tapes? Please and thank you. With great anticipation, we awaited the band’s third album, Wilder Mind.  But then, the band started releasing singles. They lacked something—primarily, the folk. The band apparently sought a fresh, more electric sound. But fresh isn’t the most apt descriptor. “Believe” sounded like Cold Play, which is bad. “The Wolf” sounded like Foo Fighters, which is better than Cold Play but not Mumford & Sons. Wilder Mind was released in early May. We’ve listened and listened; it has grown on us. Unsurprisingly, the early releases—those intended to be chart-toppers—rank among our least favorite. But the album’s got gems in “Just...