The Queen's Funeral Music

I wondered what a piece of music was during the Queen's funeral. They try to use Google which told them it was Gary Barlow and Singh. Whereas it was actually Highland Cathedral by a pipe band. It took a few tries before it got it right Maggie and Swansea. I'm still reeling from funeral music can be pretty hot stuff. What's that? James Bond film where every time a funeral goes past a secret agent gets attacked?! That would be a good title for a rather loose with the facts autobiography.