Promoted as Chicago’s only classical music street festival, this annual two-day event, now in its seventh year, is not quite on the scale of Lollapalooza, but has two important things in common with that and every other outdoor music happening – you can buy a beer and a tee shirt.

I came for Crossing Borders Music, represented on this occasion by the talented duo of violinist Jennifer Leckie and pianist Marianne Parker. I wasn’t disappointed, as their engaging selections crossed numerous borders, including music by composers from Cuba, Uruguay, Armenia, Colombia, and Arkansas.

I also was pleased with the sound system, the ease of parking, and the availability of seating, though I chose to stand, which if I understand the research correctly, caused me to burn up an extra 75 calories.

It also enabled me to hang out in front of the Mathnasium, Math Learning Center, and try to respond to the half dozen, grades K-12 questions on their windows, while simultaneously listening to music and breathing. Since the answers were not shown, I’m going to assume I got them all right, except, okay, maybe one of them.