Ian Pai, who built sets and composed some of the original music used by the Blue Man Group, stands July 12, 2016, outside the troupe’s current venue in New York. Pai contends that he has been underpaid in royalties for decades and has filed a lawsuit seeking at least $150 million.

Benjamin Norman / The New York Times

Ian Pai, who built sets and composed some of the original music used by the Blue Man Group, stands July 12, 2016, outside the troupe’s current venue in New York. Pai contends that he has been underpaid in royalties for decades and has filed a lawsuit seeking at least $150 million.