Roots of the Blues is aired and webcast on alternate Mondays, from 8 to 10 P.M on KZYX&Z Mendocino County Public Broadcasting, 88.1, 90.7 and 91.5 FM, www.kzyx.org. The show features mostly-acoustic recorded country blues and pre-blues, plus occasional live music and interviews, and is hosted by bluesman Ragtime Rick Blaufeld.