U2’s Larry Mullen Jr. Explains Why Dyscalculia Diagnosis Makes Him Feel ‘Pained’ While Drumming

Larry Mullen Jr. may have spent his career drumming, but that doesn’t mean it all comes easily to him. In a new interview with Times Radio published Thursday (Dec. 12), the U2 percussionist revealed that he has long struggled with dyscalculia — a learning disorder related to mathematics — that sometimes interferes with his ability to play.

While speaking to the publication about his work on the soundtrack for Anna Toomey’s Left Behind documentary, which tells the story of five mothers working to establish New York’s first school for dyslexics, Mullen Jr. said that he’s “always known that there’s something not particularly right with the way that I deal with numbers.”

“I’m numerically challenged,” he continued. “And I realized recently that I have dyscalculia, which is a sub-version of dyslexia. So I can’t count [and] I can’t add.”

According to Cleveland Clinic, dyscalculia interrupts the areas in the brain that process skills related to numerical comprehension, similar to how dyslexia complicates the brain’s ability to read. For Mullen Jr., the disorder makes it difficult for him to count through measures of music while he’s playing alongside bandmates Bono, the Edge and Adam Clayton.

“When people watch me play sometimes, they say, ‘You look pained,’” he told Times Radio. “I am pained, because I’m trying to count the bars. I had to find ways of doing this — and counting bars is like climbing Everest.”

Featuring music written and produced by Mullen Jr., Left Behind first premiered at Woodstock Film Festival in October. The documentary’s story hit close to home for the U2 band member in more ways than one, he says, as one of his sons also struggles with a learning disability.

“Making the music through the eyes of my dyslexic son felt personal and visceral,” shared Mullen Jr.

The interview comes just a couple weeks after the Nov. 22 arrival of U2’s How to Re-assemble an Atomic Bomb, a special release celebrating the 20-year anniversary of How to Dismantle an Atomic Bomb that features previously unreleased tracks from the 2004 album’s recording sessions. In September, the rock band premiered V-U2 An Immersive Concert Film at Sphere Las Vegas, an onscreen playback of the group’s historic residency at Las Vegas’ The Sphere.

U2’s most recent album was Songs of Surrender, which arrived in March 2023. The project reached No. 5 on the Billboard 200.