On December 28, 2025, Catherine, Princess of Wales, and her daughter, Princess Charlotte, delivered an impressive piano duet without any guidance, showcasing their natural talent.

The 43-year-old royal and her 10-year-old daughter performed “Holm Sound” in a captivating moment that aired during the Together At Christmas carol concert on Christmas Eve. Erland Cooper, the composer of the piece, expressed his delight at being invited to the special recording at Windsor Castle.

Catherine, Princess of Wales recorded a duet with Princess Charlotte

Speaking to BBC Breakfast, Erland shared, “Earlier this year, the princess mentioned how much she enjoyed playing this piece with her family. Being invited to Windsor Castle to witness the performance by two princesses was an unexpected delight. Their skills were so remarkable that no direction was necessary.”

Erland told BBC Breakfast: “I’d had a chat with the princess earlier in the year and I knew she enjoyed playing this piece of music with family.

“It was a big surprise to be invited to Windsor Castle and hear it performed by a pair of princesses. I didn’t need to give direction, they were so good.

“Performing in front of a film crew and the person who wrote the music is a nerve-wracking thing for anybody, I’m sure. They played it several times and then they asked me to have a wee go as well, and I gave a few pointers. But I didn’t need to. I think I was there as a cheerleader.”

The Scottish musician praised Charlotte as “very confident”.

He added: “She played it so beautifully.”

Erland wrote Holm Sound for his mother, who is also called Charlotte, and the “full circle moment” of family ties.

He said: “This is the wonderful coincidence, it’s about how we see our parents in our children’s eyes and but then when you look at your mother and you look at granny, you see your children. It’s about that sort of full circle moment, and it’s about motherhood.”

Catherine and her daughter recorded the duet in Windsor Castle’s Inner Hall earlier in December, with the older princess playing with her left hand and Charlotte with her right.

As the performance aired, footage was shown of guests arriving at the Westminster Abbey carol service, including Catherine and her husband, Prince William, watching as their three children tied paper chains with their names on to a “connection tree”.

The Wales family were joined at the carol service by other members of the royal family including Zara and Mike Tindall, Sophie, Duchess of Edinburgh, and Prince Michael of Kent, as well as Catherine’s parents, Carole and Michael Middleton, and her brother James Middleton, who was accompanied by wife Alizee.

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