Boston-area blues guitarist and singer Paul Rishell specializes in the country blues, but in recent years, he's been proving his mettle on occasional gigs with an electric band as well. Rishell has been riding the wave of renewed interest in acoustic music in general, and he's taken his style of acoustic country blues to festivals and clubs around the U.S., often accompanied by his harmonica playing partner, Little Annie Raines. Before he ever entered the recording studio, Rishell spent many years studying his craft, and he's shared stages with good people: Son House, Johnny S...