. "form of American roots music; sub-genre of country music characterized by a quick tempo, with fiddle, banjo, and mandolin prominent"@en . . . . . . "bluegrass music"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "bluegrass music"@en . . . . . . . . . . . . . . . "bluegrass music"@en . . .