"Passaic Hornpipe" also known as "Trafalgar Hornpipe" is an American hornpipe in cut time and A Major. The parts are played AABB.
It was named for the former mill town of Passaic, New Jersey, settled by the Dutch in 1679 and incorporated as a city in 1873, a decade before the tune was published in Ryan's Mammoth Collection (1883).
An essentially identical tune can be found in Ryan's collection in 2/4 time under the title "Trafalgar Hornpipe". John Hartford and Stacy Phillips both note the first strain is the same as "Brilliancy". It was printed in Ryan’s Mammoth Collection (1883) and Cole's 1000 Fiddle Tunes (1940).