Few bluegrass groups have been around for forty years, and even fewer have been more popular, more widely admired or more influential for as long as Mountain Home Music Company recording artists, Lonesome River Band. By the early 1990s, they were winning key awards and topping the charts, and while members have come and gone, the quintet’s reputation for crafting essential, archetypal bluegrass has only grown with each passing year. Now, the bluegrass powerhouse is releasing a new album, Heyday, surrounding four hit singles with a set of songs that serves both to introduce new members and to extend the group’s influential legacy still further.