Indeed, in one corner some of the young Tooks and Brandybucks, supposing Uncle Bilbo to have finished (since he had plainly said all that was necessary), now got up an impromptu orchestra, and began a merry dance-tune.
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In one picture, which seems like the most recent but still looks a few years dated, his dad has his arms around the two boys, and he’s squeezing them together for an impromptu photo.
Colleen Hoover -- Slammed
I hesitate for a split second, long enough to place the tune—Frank Sinatra, "New York, New York"—and say a prayer of thanks that the Pugs aren’t witness to my mom’s impromptu performance.