Mezzo-soprano Kelley O'Connor.By Greg StepanichArtsPaper has been around only a little longer than a month, but the e-mails are starting to pile up. Here are three recent notes from my musical inbox about upcoming events:Walter Salas-Humara, solo: The frontman for the band The Silos, which has gotten a bunch of good press in the past from outfits such as Spin magazine, returns … [Read more...]