Prince William and Kate Middleton had a busy Tuesday. First there was the couple’s unannounced visit to Northern Ireland, where they toured the Belfast city center (both flipped pancakes for Shrove Tuesday during a visit with a children’s cancer group), stopped by the official royal residence in Northern Ireland and toured an agricultural college near Antrim.

Later, the Daily Express reports, the couple spent more than an hour at Westminster Abbey listening to a rehearsal of some of the music that will be performed during their wedding next month. For the abbey visit, William and Kate were accompanied by William’s father, Prince Charles.

The three arrived in Charles’s Jaguar at 8 p.m., the paper reported, and left through the same back gate at 9:15. Photos showed William riding in the passenger seat next to the driver, while Kate sat in the back next to her future father-in-law.

An unnamed “royal insider” told the paper that William and Kate were in London for the musical rehearsal. William is stationed in north Wales while serving as a search-and-rescue helicopter pilot; Kate is thought to be splitting her time between north Wales and her parents’ home.

A full orchestra practised for more than an hour before the royal party arrived, the Express reported, and about a dozen “young choristers wearing black velvet cloaks paraded into the Abbey in formation.” The couple were said to be making final choices about what music will be performed at their April 29 wedding.