The Horizons Of Rock really are Developing Everywhere. Add two more names to the growing H.O.R.D.E. lineup: indie rocker Ani DiFranco and Boulder, Co., polytecnic Cajun slamgrass band, Leftover Salmon. The two joined forces with already scheduled acts Neil Young, who is headlining, Widespread Panic, Primus, Big Head Todd and the Monsters and Morphine. (AB)