The moe.mentUM Tour lands at The Rooftop at Pier 17, placing two long-running American road bands—moe. and Umphrey’s McGee—on a New York City waterfront stage for a live set framed here as jazz. In a city where improvised music has long been both nightlife and history, the tour’s emphasis on extended interplay reads as a nod to that lineage, even outside the usual club circuit. The format prizes group communication over front-person narrative. One could argue the setting tests how jam-language translates when removed from the small-room intimacy that shaped it.