After Nickel Creek disbanded in 2007, mandolin virtuoso Chris Thile assembled an all-star quintet called Punch Brothers (the name comes from the Mark Twain short story Punch, Brothers, Punch!) with guitarist Chris Eldridge, formerly of the Infamous Stringdusters; bassist Greg Garrison, who has played with Ron Miles and Leftover Salmon; banjo player Noam Pikelny, who has worked with John Cowan and Tony Trischka, and violinist Gabe Witcher, a sought-after session musician and a member of Jerry Douglas' band for a half-dozen years.