By Bruce Warren, WXPN WXPN launched it’s inaugural video for The Key Studio Sessions in August with the local Philadelphia band Sisters 3 including the Sadler siblings—Annachristie, Beatrice and Cassandra. Sisters 3 are known largely for their collaborative work among the Philadelphia folk community, backing up Hoots And Hellmouth and Hezekiah Jones with their three-part … Continue reading WXPN’s The Key Studio Sessions meets Sisters 3