Hugh Mack, of Blenheim, opened with Dvorak's Sonatina in G Major for Violin and Piano Op 100, with Richard Liu on piano.
Olivia Francis, of Cambridge, followed with Bach's Partita No 1 for Solo Violin in B Minor, then Annabel Drummond, of Dunedin, played Franck's Violin Sonata in A Major, with Sarah Watkins on piano.
Chikako Sasaki, of Wellington, delivered Saint-Saëns's Havanaise Op 83.
Hiroo Fukuoka, of Whangarei, performed Bach's Sonata No 1 for Solo Violin in G Minor , followed by Esther Kim, of Auckland, with Vieuxtemps' Concerto for Violin and Orchestra in A Minor Op 37 No 5, with Mr Liu on piano.
The school ensemble concluded their show with Prokofiev's March from The Love For Three Oranges.
Miss Drummond, Miss Francis, Mr Sasaki, Miss Kim and Tomoko Suganuma, of Christchurch, were declared recipients of scholarships for the 2010 school.
Earlier on Saturday, students busked in small groups around the central business district then assembled together beneath the shade of a tree on Earnslaw Park.
The violinists serenaded market browsers and sunbathers with a brief medley, including Pachelbel's Canon, to "give back to the community", artistic director Kevin Lefohn, of Christchurch, said.
The 2009 school had gone really well, he said.
"Different things have changed the feel of it.
"The staff concert was an extraordinary success, with near capacity in St Peter's Church last Tuesday.
"It was an experiment.
"We didn't know how interested the community would be, but they came out in droves."
Miss Kim will perform Vieuxtemp's Violin Concerto No 5 in A Minor with the Christchurch Symphony Orchestra and in front of more than 10,000 people on February 5.
The 16-year-old had performed the piece and won the starring role after auditioning with three other nominated students the weekend before.
"Some of the staff commented they had never had an opportunity to play for an audience that large," Mr Lefohn said.
Miss Kim said she was "really excited" about the Hagley Park concert.
"I'll be going back to Auckland to prepare . . .
"My piece is pretty ready now, but maybe a little more practice."
A violinist since she was aged 5, this month was her first experience with Queenstown Violin Summer School.
"The teachers are really good and I've learned a lot, like how to be a musician and how to perform on stage."
The school will resume for its eighth year next January.
