Tune in for an encore airing of etown this week as we welcome back innovative acoustic guitar master Leo Kottke who shares some old and new favorites, and wows us all with his amazing virtuosity. Joining Leo is the Philly-based Ben Arnold who succeeds at combining soulful singer-songwriter folk rock with an edgy tone and strong groove. Also, host Nick Forster chats with Dan Chiras, green building consultant and author of “The Solar Home: The New Ecological Home,” about sustainable building. Once again it’s music, conversation and an inspirational e-chievement award for you from etown.