A dementia suffering pianist in the UK whose spontaneous composition went viral last year has fulfilled a lifelong dream of conducting a symphony orchestra – which played his tunes.

Paul Harvey, 81, went viral last September when his son Nick had recorded him improvising a two-minute piece from four notes – F natural, A, D and B natural – and posted the footage on Twitter.

Nick posted the clip online to show how musical ability can survive memory loss and Paul captured the hearts of the nation when he tickled the ivories from his home in Sussex, southeast England live on TV.

It was recorded by BBC Philharmonic orchestra as a single with proceeds going to the Alzheimer’s Society and Music for Dementia, which campaigns for people with the condition to have free access to music as part of their care.

To mark a year since he played his composition on breakfast tv, Paul was invited to conduct the BBC Philharmonic orchestra playing two of his compositions at their studio in Salford.

He spent an emotional afternoon with the orchestra, during which he conducted both Four Notes, while his son Nick played the piano, and an older composition of his called Where’s the Sunshine.

Paul, a former music teacher and classical pianist, said: “It was magical, it was very, very special to work with such wonderful musicians.

“It made me feel alive, I couldn’t believe that an orchestra was playing my music and I was standing in front of it conducting them.

“I hadn’t conducted in such a long time before this, it was a real thrill.”

Paul was born in Stoke-on-Trent and studied piano at the Guildhall School of Music.

He became a composer – his Rumba Toccata is still used in grade 6 piano exams – and a concert pianist, appearing on the BBC Home Service in 1964.

But he decided to become a music teacher shortly before his eldest son Nick was born.

He spent 20 years teaching at the Imberhorne school, a comprehensive in East
Grinstead whose former pupils include Cutting Crew’s Nick Van Eede, famed for his hit ballad (I just) Died in Your Arms.

Five years ago, Paul moved into sheltered accommodation as part of his dementia care.

Nick, who joined Paul on the trip – organise by Music For Dementia – said he had seen his dad “come alive again” since the video of him playing piano went viral.

And he supported calls for music to be a key part of dementia sufferer’s care.