Pardon the late notice, but I only learned about this concert over the weekend. The terrific Connecticut guitarist Michael Musillami will be making a rare Chicago appearance with his longtime working trio (featuring bassist Joe Fonda and drummer George Schuller) tonight at the Skylark. The band will be joined by Milwaukee trumpeter Russ Johnson, who appears on the guitarist’s latest album Mettle, released on his own Playscape label last year. That record—billed to Michael Musillami Trio + 4—also includes contributions by vibist Matt Moran (Claudia Quintet, Slavic Soul Party) and reedists Ned Rothenberg and Jeff Lederer. The core trio celebrated a decade together in 2012, and its rapport is clear in the recordings it’s made together.