Banjo player, singer and songwriter Gina Furtado’s distinctive original songs are an aspect of her music that has won her a boatload of bluegrass airplay. Still, she’s an equally distinctive interpreter, as her previous single, a tip of the hat to African-American gospel favorites, the Golden Gate Quartet, showed — and now she’s following up with another tribute, this time to a couple of bluegrass giants: Bill Monroe and Hazel Dickens.