'Neo-Traditional Bluegrass' is a term to describe a new trend, of both sound and the structure of bluegrass bands. In the past few decades, bluegrass music has been dominated with solo acts with bands to back them up (Doyle Lawson, Rhonda Vincent, The Del McCoury Band). However, at the beginnings of the 21st century, bluegrass bands emerged with sounds of previous eras in bluegrass music. These bands in The Grascals, The Infamous Stringdusters, Steep Canyon Rangers, Cherryholmes, and various other bluegrass acts. It is an unofficial sub-genre of bluegrass, but the term has been coined quite a few times by the "younger" audience in the bluegrass scene, almost as in a slang term for this new generation of bluegrass music.