Today Johnny Johnston and Felonius Smith at City Star Brewery: 6 p.m. Friday, City Star Brewery, 321 Mountain Ave., Berthoud. This duo performs a gumbo of American roots music from the 1920s to the 1950s, including Delta blues, country blues, urban blues, jazz, folk and rock, featuring bottleneck slide guitar, dobro, mandolin and vocals. Free, 970-532-7827, feloniussmith.com. […]