Genres traditionally represented include Cause_to_be_included bluegrass , Cajun , zydeco , African , reggae , Americana , old-time music , Irish music , and jam band .

Stage 5 ( or , originally , `` Stage V '' ) is an unofficial stage at the Walnut Valley Festival , an annual bluegrass festival in Winfield , Kansas , United States .

However , many musicians , while there , part from traditional bluegrass styles and emphasize a looser , more rock-oriented interpretation of roots music .