In 1983, while attending school at Princeton High School in Princeton, New Jersey, Hill met Blues Traveler harmonica player John Popper.
In 2006, Kinchla also joined Blues Traveler frontman John Popper in a side project called the John Popper Project.
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In 1986, he stopped recording and touring and founded the New School for Jazz and Contemporary Music in New York City; among the program's students were Roy Hargrove, Brad Mehldau, Larry Goldings, John Popper, Peter Bernstein,.