(Mary Altaffer | AP file photo) Members of the NY Phil Bandwagon, from left, violinist Fiona Simon, countertenor and producer Anthony Roth Costanzo and violinist Curtis Stewart perform in the Flushing neighborhood of the Queens borough of New York, Friday, Oct. 2, 2020. The NY Phil Bandwagon travels to three unannounced locations around New York City, Friday through Sunday, for an impromptu pullup chamber music concert as part of the New York Philharmonic's Fall 2020 activities.