WATCH: Howard Lorber in concert(!)

Watch an impromptu performance by Douglas Elliman’s chairman

Howard Lorber plays to his own tune. Specifically, “Swans on the Lake” — the only one he knows.

The Douglas Elliman chairman’s talent emerged Tuesday at a press preview and broker tour of 111 West 57th Street, the newest luxury condo building on Billionaires’ Row.

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Developed by Michael Stern’s JDS Development Group, Kevin Maloney’s Property Markets Group and Spruce Capital Partners, the project is nearing completion. Last year Elliman took over marketing and sales from Corcoran Sunshine Marketing Group.

The 91-story supertall is anchored in the base of the historic Steinway Hall, a former showroom for famous piano maker Steinway & Sons. Though its landmarked rotunda will be preserved, most of the base has been rebuilt as the lobby to the condo tower, designed by SHoP Architects and Studio Sofield.

Lorber performed extemporaneously on one of the two Steinway pianos brought in for the event. With the exception of Lorber’s impromptu serenade, the instruments were played by musical professionals as brokers and members of the media ambled through the space for a glimpse of the building’s new entrance and a residence.