Jeff Dixon is one of six finalists selected to present live at the concert, which gives people living with disability the chance to show their skill.
Mr Dixon has played the guitar since he was 10 years old, but said performing to a big audience would be a clear step up from a few pub gigs he has done.
He will perform his original piece Oilfields and Rocky Bay, which is dedicated to two organisations that have played an important role in his life.
“Oilfield Production Technologies and Rocky Bay have both provided me with great opportunities and I wanted to be able to recognise them through Ability Idol,” he said.
“My friends from Rocky Bay heard me play and encouraged me to enter, so I’m really thankful for their support.”
Event co-ordinator Ben Cox said Ability Idol was about giving people with disability the chance to show their talents.
“We haven’t got many things like Ability Idol in WA. It gives people living with a disability a chance to perform in front of a live audience, which is great,” he said.
“I’m really excited to bring Ability Idol to life and hope that by taking part people with disability will get the chance to achieve their own dreams.”