In addition to his brother, he is survived by his mother; a sister, Tara Papadopoulos; a daughter, Nikki Ziolkowski; a son, Charlie Papadopoulos; and a granddaughter. Two marriages, to Elizabeth Vogdes and the musician known as Deerfrance, ended in divorce.
In the late 1990s, Mr. Pop began hosting a weekly performance series that roamed the East Village showcasing live avant-garde music. He started it at a tiny coffeehouse called the Internet Cafe before moving on to CBGB, where he secured the club’s basement space on Sundays.
“I wanted diversity,” he said of the series. “I wanted to challenge people.”
After CBGB closed in 2006, Mr. Pop moved the series to Jimmy’s No. 43, and The Village Voice called him an “avant guardian.” In recent years he held shows at Troost, a bar near his apartment in the Greenpoint section of Brooklyn.
Around 2015, Bush Tetras reunited. The group recorded an EP, “Take the Fall,” in 2018, and then put out a single, “There Is a Hum,” on Third Man Records. A boxed set, “Rhythm and Paranoia: The Best of Bush Tetras,” is to be released next month on Wharf Cat Records.
Mr. Pop died the night before a release party was held at the Howl! Happening arts space in the East Village. The gathering turned into a memorial.
As video clips featuring Mr. Pop’s furious drumming played on a projector screen, Pat Place and Cynthia Sley stood up in front of the crowd, holding each other as they remembered their bandmate.
“He lived to drum,” Ms. Sley said. “He loved the Bush Tetras.”
She choked up.
“Bush Tetras,” she added, “is a force that cannot be stopped.”