Sadly, not on the 42 bus line, but well worth a trip up to Tenleytown. It's an annual volunteer run music series. And it's always free, and high quality, and relaxing, and alcohol free, and just a treat. Shows are Mondays and Thursdays. There are a few left this summer. Here's the schedule. Put it on you summer calendar for next year. A gem in the grab bag of sometimes questionable free offerings that this city puts forth on a regular basis.