Last night's Chicago show at McGrath Amphitheater featured a couple cats from the Windy City who've been playing live music since 1967, So, if the band started when they were 20, do the math. That's a lot of stage time.

As for the crowd....55-year-old guys named Skip with a pony tail and flipflops had a blast. So did their wives named Barb. I saw a boat load of Barbs and Skips grinding near the sound board. Last time I saw a 9-piece band with this much grinding [albeit in a different style] was 11 days ago with some kids from Iowa in masks at the Cell Center.

Fellow Chicagoans Local H will often pull out this jam on stage. What do all the numbers mean?

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