Young musicians from counties Donegal, Sligo and Mayo are gathering for a combined rehearsal at Music West in Castlebar.
The Atlantic Tri-Orchestra is coming together ahead of performing at the National Concert Hall on Saturday, 7 February.
It will be the 30th Festival of Youth Orchestra, showcasing hundreds of musicians across Ireland.
There will be two concerts at 1pm and 7.30pm.
The Atlantic Tri-Orchestra will give its first live performance of Hope Springs Eternal by Irish composer Vincent Kennedy.
The piece was originally commissioned by the Irish Association of Youth Orchestras (IAYO) during the Covid-19 pandemic and assembled from remote recordings submitted by 250 young musicians.
Sligo musician, Ciara Murphy, is stepping onto the stage of the National Concert Hall on 7 February to conduct the UCD Symphony Orchestra.
The 26-year-old first took part in the IAYO Festival when she was younger.
"I participated in the 16th IAYO Festival as a ten-year-old cellist with Sligo Academy of Music, so it's very special to be returning as a conductor.
"I’m very grateful to the IAYO for the role it played in my musical development and for the opportunities it continues to create for young musicians across the country.
"Making my National Concert Hall conducting debut in this context is a privilege, and I’m especially thankful to UCD Symphony Orchestra and Dr Ciarán Crilly for the opportunity to be involved this year," Ms Murphy said.
The programme features Symphonic Dances from West Side Story, Symphonic Suite from The Fellowship of the Ring, selections from Man of Steel by Hans Zimmer, traditional Irish music and original compositions from Irish composers, including Martin Power and Katharina Baker.
