BURLINGTON, Vermont — A pianist who wants to raise awareness about climate change is going to perform 251 times — in each and every town in Vermont. David Feurzeig, a music professor at the University of Vermont, recently gave up airline travel to reduce his carbon footprint. And he’ll be traveling for his “Play Every Town Vermont” concerts in an electric vehicle. “There’s a lot of resonance that people have with this idea from other musicians, from audiences.