Seeking more personal time for herself and to spend with her family and friends, Mary Katherine Aldin will discontinue hosting “Alive & Picking,” her longtime weekly radio show that airs Saturday mornings on Pacifica Radio’s KPFK 90.7 FM in Los Angeles, after the Dec. 31 broadcast. The show -- which also is simulcast on stations in Santa Barbara, China Lake and North San Diego -- has featured vintage and current recordings of traditional and contemporary bluegrass, folk and old-time roots music, as well as a community calendar of live music events in Southern California. [To read the full article, click on the headline.]