Peter Louw recently had a big meeting with some musicians from the University of British Columbia.

"I couldn't sleep," the 83-year-old said.

The senior was going to learn how to conduct an orchestra — a dream over 50 years in the making.

Louw was born in Cape Town, South Africa in 1933. He often listened to the orchestra as a child, dreaming of the day he could be a part of the show.

Peter and Millie Louw are pictured in Vancouver with their sons Keith and Michael in an undated photo. (The Louw family)

However, in 1948, South Africa fell under an apartheid government and race-based laws were enacted.

Whites were segregated from other races, and opportunities for non-whites were stripped away.

That meant Louw, who is of mixed descent, wasn't allowed to join the orchestra like he'd always wanted.

Eventually, he and his wife Millie decided to move to Canada, not wanting to raise their two sons under the apartheid's rules.

The family eventually settled in Chilliwack, and Louw became a teacher after studying education at UBC.

His dream of joining the orchestra never faded.

"I used to conduct the flowers in my garden," Louw told CBC's The National. "I loved the music so much."

Fast forward nearly 50 years, and Louw now lives in a Surrey, B.C. retirement home. The centre partners with the non-profit "Wish of a Lifetime" organization that works to help seniors achieve their goals.

Staff asked Louw what he wanted to accomplish more than anything, and he asked to lead an an orchestra through a performance of O Canada.

He said it would be his way of thanking Canadians for the kindness they've shown to his family since they touched down nearly 50 years ago.

Louw, 83, speaks to CBC's The National about his life-long dream in November 2016. (Chris Corday/CBC)

The organization contacted UBC and the university arranged to have Louw come lead its 110-member student orchestra during a rehearsal on Nov. 29.

UBC's Jonathan Girard and Stephen Chapman — a conductor and a composer, respectively — donated their time to give the senior a quick conducting lesson at Louw's home a few days before the show.

"It's not every day you make a wish and strangers put in the time and effort to make it come true," Louw said.

Conductor Jonathan Girard (left) and composer Stephen Chatman (right) give Louw a conducting lesson at his retirement home in Surrey, B.C. (Chris Corday/CBC)

Then came show day at UBC's Chan Centre for the Performing Arts.

"I've dreamt about this for a long time," the senior said just before the performance. "It's wonderful to bring this to fruition."

Before they got started, Louw told the students how an immigration officer first welcomed him to his new home.

"[He said,] 'Forget about the past. You're in Canada now and you're free to live and enjoy yourself.'

"So, here I am," Louw went on. "This is one of my dreams."

Peter Louw, 83, wasn't allowed to conduct an orchestra in his homeland but his wish was granted in Canada decades later.

In the end, O Canada with the UBC Symphony Orchestra went off without a hitch — even if the conductor's tempo may have been a touch slow.

When Gerard asked him how it went?

"Lovely," Louw said. "That felt really good."

Smiling after a job well done. (Glen Kugelstadt/CBC)

With files from Chris Brown and Chris Corday