The intermediate section will start at 10am, with each of the nine performers set to play two pieces. Items will include works by Haydn, Handel, Beethoven and Bach as well as jazz and more modern compositions.
The vocal section follows at 12.30pm, with two entrants singing works by Weill, Schonberg, Schubert and Mozart.
The seven performers in the senior section, which include several pianists as well as a violinist, a tenor horn and flute player, will follow at 2pm.
Event organiser Robin Rutherford said: "Audience members can come to any section or all sections, and there is a small admission charge for this opportunity to hear outstanding local young musicians performing.
"This is always a very enjoyable day listening to the best young instrumental performers in Whanganui playing at a very high standard."