The music you’re hearing is by probably the longest lasting band in San Francisco: The Golden Gate Park Band. They’ve been giving free concerts nearly ever Sunday from late April until early October... since 1882.
They always perform in the Spreckles Temple of Music at Golden Gate Park, starting at 1:00pm. Each week there’s a different theme. This Sunday, July 28th, fittingly, it’s “Great Concert Band Music.”
And if you see a tall trumpet player in the back, it’s probably KALW engineer Eric Wayne. So go say hello.