Is there an instrument that embodies the blues better than a harmonica? If you said, “no,” then you’re probably the type of person who would find her way to this week’s 25th anniversary Blues Harmonica Blowout at the Harris Center for the Arts in Folsom. Featuring an extensive lineup of blues harpists spanning three generations, this event is set to be a rockin’ wild time. Joining Insight to showcase some of the talent you’ll find at this Wednesday’s concert are three bluesmen: Harmonica player Aki Kumar, guitarist “Little” Charlie Baty, and bassist RW Grigsby.