"It's not a showy piece so you have to make a lot of it because it's quite academic. Haydn is known as the father of chamber music so his music is very educating for young musicians like ourselves."
The group's name comes from a shared love of the works of JRR Tolkien, author of The Lord of the Rings and The Hobbit.
"In the Elvish language, 'valinor' means 'heavenly'," Eden said.
The group started playing together as a group in 2011, and this is the fourth year they've taken part in the competition. Last year they received a highly commended award in the same competition.
The trio will travel to Napier to compete in the regional final on Sunday. The winner of the regional final will be one of 12 ensembles to compete in the national finals in Auckland in August.
As with last year's winners, RD3, the members of Valinor Trio have a strong Christian faith and had to think carefully before agreeing to play in the regional final, which is held on a Sunday. Sunday is traditionally a day of rest and church-going for Christians.
However, unlike the members of RD3, the Vaatstras have decided to take part in the event.
The three were taught music by their four older brothers, all of whom studied music to tertiary level and are accomplished musicians. Ida, Eden and Theodore now study with Pamela Dowsett in Palmerston North.
The Turneresque Trio has also been selected to take part in the regional final. They are a combined Wanganui Collegiate/Whanganui High School group of Shaila Hawkins (voice), Angela Wu (flute) and Jonny Matthews (piano).
They played three of the four William Alwyn Seascapes and gained a highly commended and a KBB Award in the district contest.
The group are called the Turnerseque Trio since their music, Seascapes, is a musically impressionistic portrayal of sea images and brings to mind the paintings of William Turner. Also, the work was commissioned from recorder player John Turner, and first performed in 1982 as an accompaniment to an art exhibition at the Whitworth Gallery in Manchester.
The two Whanganui groups will compete alongside seven groups from Wellington and one each from Palmerston North, Hawke's Bay and Gisborne.