The Queen's state funeral will be a day that highlights the "wonderful things that can happen in music", the King's master of music has said.
Judith Weir held the position of Queen's Music Master until her death, becoming the first woman to hold the post in 2014.
After Charles ascends the throne, Ms Weir will become the King's Music Master until his reign ends in 2024.
The Queen's funeral will be a "transient day" that will affect millions of people.
"It's going to be a beautiful day, we're going to see the most amazing thing that can happen in music," he told the BBC.
"I think that it is also an important moment for us that we will not see the queen again.
“He won't be seen very often, even in the last year to do good things, cut the cake with WI or something. He is dead, this is our moment of reality."
Composer and musician (68) The Queen also spoke of her enjoyment of music.
He said. "In my experience, he was a person who had a lot of music in his life, had a great musical education in his youth, piano lessons, amateur theater singing.
"But of course as an adult he was surrounded by music, he really admired those big military bands.
“She was a churchgoer and a leader of the Church of England, she went at least once a week and she and her husband could really hear that beautiful Anglican music and they could really tell the difference.
"Also, of course, I will say that she was a young woman in the 40s and listened to the big show music of that time.
“I don't think he was passionate about music, but he was very clear about good or bad performances, whether people were doing well or not.
– I think that's why he deserved a good word.