After more than 3 decades of incredible mahi, we are celebrating Karen’s journey with Voices New Zealand and the New Zealand Youth Choir with this gala concert.

If you have sung under Karen or are a current or past CANZ singer who has been influenced by Karen’s work, we invite you to SING in this concert as part of the alumni massed choir.

Apart from the obvious rehearsal time for these massed alumni choir pieces, there will be many chances to socialize and see other events in this year’s Aotearoa NZ Festival of the Arts in Wellington.

If you want to sing, this is what is required:

– be available for at least 2 hours of joint rehearsals on Saturday 14 March in Wellington,

– be available for the dress rehearsal at Michael Fowler Centre on Sunday 15 March and concert at 6.30pm

– purchase a very discounted ‘alumni singer seat‘ in a premium position in the stalls, from which you can then enter the stage for the joint items.

If you want to attend but NOT sing, here is a link for discounted general alumni tickets.

Social events:

  • see Voices 16 perform live on stage with the New Zealand Dance Company in GLORIA as part of the Festival.
    Get tickets for Friday night or Saturday night

 

Now, please fill in this short survey and tell us your plans to attend this special weekend!

Let’s make this a big celebration, we look forward to sharing this with you.

After more than 3 decades of incredible mahi, we are celebrating Karen’s journey with Voices New Zealand and the New Zealand Youth Choir with this gala concert.

If you have sung under Karen or are a current or past CANZ singer who has been influenced by Karen’s work, we invite you to SING in this concert as part of the alumni massed choir.

Apart from the obvious rehearsal time for these massed alumni choir pieces, there will be many chances to socialize and see other events in this year’s Aotearoa NZ Festival of the Arts in Wellington.

If you want to sing, this is what is required:

– be available for at least 2 hours of joint rehearsals on Saturday 14 March in Wellington,

– be available for the dress rehearsal at Michael Fowler Centre on Sunday 15 March and concert at 6.30pm

– purchase a heavily discounted ‘alumni singer seat‘ in a premium position in the stalls, from which you can then enter the stage for the joint items.

If you want to attend but NOT sing, here is a link for discounted general alumni tickets.

Social events:

  • see Voices 16 perform live on stage with the New Zealand Dance Company in GLORIA as part of the Festival.
    Get tickets for Friday night or Saturday night

 

Now, please fill in this short survey and tell us your plans to attend this special weekend!

Let’s make this a big celebration, we look forward to sharing this with you.

Imagine the power of harmony echoing through the cathedrals of France, the concert halls of Germany, the vibrant stages of Sweden, and the historic venues of the United Kingdom. This is the journey of a lifetime, a celebration of our Artistic Director Emerita Karen Grylls final tour with Voices New Zealand. This musical tour across Europe will showcase the extraordinary talent of our world-class choir and build bridges through the universal language of music.

But we can’t do it without you.

Our goal is to raise $15,000 to help cover travel, accommodation, and logistical costs for our performers. This tour is more than a performance — it’s a once-in-a-lifetime opportunity for our singers to grow artistically, represent our community on an international stage, and bring the gift of song to new audiences.

Every donation, no matter the size, helps us move one step closer to lifting our voices in unity across borders. Whether you’re a long-time supporter or discovering us for the first time, we invite you to be part of something truly inspiring.

Become a Destination Sponsor and become part of our journey. Together, we can make this tour not just a dream, but a resounding reality.

You would be supporting the following highlights:

  • Mass & Concert at Notre Dame
  • Mass & Concert in the Storkyrkan, Stockholm.
  • Concert with the BBC Singers in London
  • Three members of the choir, who were part of the NZ Youth Choir winning ‘Choir of the World’ in Llangollen in July.
  • Two featured concerts in the Phoenix Festival, Germany.
  • Getting Robert Wiremu’s Reimagining Mozart recorded on BBC3
  • The world premiere of young māori composer Takerei Komene’s work Ranginui, performed by Voices NZ and BBC Singers, recorded by BBC3
Become a Destination Sponsor!
Click on one of the destination images to add your support!

Your support will help us to deliver the international tour of Voices NZ in 2025 amidst rising costs of touring. Your donation will help us with our touring budget to deliver the excellence and beauty of ensemble singing to New Zealanders.

Choirs Aotearoa New Zealand is delighted to announce Rowan Johnston as its new music director of the New Zealand Youth Choir (NZYC). The longest running national youth choir in the world, the Youth Choir carefully selects 50 of our best young singers, aged 18–25, and offers them a three-year membership of specialist training, rehearsals and performances that culminates in an international tour.

“I am delighted that Rowan will be the next director of our internationally acclaimed Youth Choir,” says Richard Sorrenson, Chair of Choirs Aotearoa NZ. “Rowan’s commitment to choral music in Aotearoa, his experience, his deep musicianship and his affinity with young New Zealanders make him the ideal choice to write the next chapter in the choir’s compelling story.”

Rowan begins his new role immediately, with planning already underway for the 2026/28 New Zealand Youth Choir, including December auditions to confirm which singers will be representing Aotearoa for the next three years.

“It’s an absolute honour to have the opportunity to conduct this national taonga,” says Rowan, “As only the fifth director in the choir’s illustrious history, I am humbled to be standing on the shoulders of choral giants in Aotearoa”.

Rowan follows on from his distinguished colleague David Squire, who led the NZ Youth Choir on its recent, and very successful, tour to Singapore, Denmark and the UK. Under David’s skilled direction, the choir received national and international media attention when it won both the Grand Prix of Nations at the European Choir Games in Denmark and the Choir of the World at the Llangollen International Eisteddfod in Wales.

Rowan says he’s deeply impressed and inspired by the musical and leadership potential of the young singers he will be leading and notes that “the New Zealand Youth Choir has always been a launchpad for choral careers, and I am looking forward to continuing this important kaupapa.”

 

For more information, contact: Rachel Healy, Choirs Aotearoa NZ Publicist. T: 027 2706105, E: rachel@rachelhealy.co.nz

 

MORE ABOUT ROWAN JOHNSTON

 

Rowan Johnston has a Bachelor in Music from Victoria University in classical singing and composition and a Postgraduate Diploma and Masters in Conducting from Auckland University. An alumnus of the New Zealand Secondary Students Choir and the New Zealand Youth Choir, Rowan still sings in Voices New Zealand, our premier chamber choir.

 

Rowan grew up in a musical family, played in pipe bands and sang his the church choir with his sister. It was as a member of the New Zealand Secondary Students Choir, led by Roger Stevenson, that he realised he had found his tribe and wanted to sing at the highest level. Rowan went on to sing with the New Zealand Youth choir directed by Dr Karen Grylls, who inspired him to follow both his passion for singing and interest in directing.

 

Rowan has previously conducted the Taranaki and Auckland Youth Choirs, was Director of Choirs at Auckland Cathedral of the Holy Trinity and HOD Music at Westlake Girls High School, where he conducted Choralation – the school’s premier mixed voice choir. Under his leadership, Choralation was placed 1st in the Mixed Choir category at the Summa Cum Laude International Music Festival in Vienna, Austria.

Rowan recently relocated from Auckland to Wellington and is HOD Music at Chilton Saint James School where he conducts all the school’s choirs. He also directs the Wellington Youth Choir and co-directs the Aotearoa Academy Choir.

Rowan has regularly been invited to conduct choirs at the Gondwana National Choral School in Australia and is a Choral Advisor for the NZ Choral Federation.

Conductor David Squire has reflected on the New Zealand Youth Choir’s unforgettable experience at the Llangollen International Eisteddfod, where the choir was crowned Choir of the World in a stunning victory last week. David was speaking from London, as the multi award-winning choir get ready to travel back to New Zealand.

Squire, who last attended the festival in 2013 with Kristin School’s SSAA choir Euphony, described the trip as a homecoming of sorts – complete with his trademark good weather:

“The last time I was there was in 2013, and I recall it was even hotter then – so my theory is that perhaps I am responsible for bringing the best weather to Llangollen!”

The New Zealand Youth Choir approached the competition with excitement but little expectation, knowing the exceptionally high standard of choirs taking part.

“Many of these choirs rehearse several times each week; we only meet three times a year,” Squire explained. “That’s why I’m so proud that our focus on great repertoire, tonal flexibility, musicianship, and communication was recognised. Our singers worked so hard to present their best performances, particularly in the Choir of the World recital – and they were understandably thrilled with the result.”

Winning the Choir of the World title, the festival’s highest accolade, places the New Zealand Youth Choir among the elite of global choral music and marks another significant moment in the choir’s 46-year history. David was also awarded the coveted ‘Jayne Davies Conductor’s Prize’ on his farewell tour with the choir.

David praised the Eisteddfod’s organisers and Welsh hospitality:

“A huge thank you to the organisers, volunteers, and the Welsh people for making us feel so welcome and helping us celebrate this special achievement.”

The Pavarotti Trophy was presented by the late Maestro’s widow, Nicoletta Mantovani. Nicoletta, who visited Llangollen to mark the occasion of the seventieth anniversary of Pavarotti’s iconic first performance at the festival.

Nicoletta said: “On behalf of the Pavarotti Foundation, I was honoured to present the Pavarotti Trophy to the exceptional New Zealand Youth Choir, winners of Choir of the World at the Llangollen International Eisteddfod. Their talent and passion, under the baton of their outstanding conductor David Squire, truly reflect Luciano’s spirit – especially during this special year as Decca Classics celebrates 90 years since the birth of the great Maestro.”

Jobs – 2 vacancies!

IMPORTANT NOTE: Applications will also be accepted to hold both currently advertised roles for the right candidate (noting that one, the Music Director Voices New Zealand, is fixed term, the MAPO is permanent)

(1) Music Director Voices New Zealand

Fixed term: 3 years (2026-2028)
Contract for services
Payment: 6K retainer per annum plus fee per project/day of work
Scope for this role approx. 0.2FTE

Closing date for Applications: 31 July 2025

This is an extraordinary opportunity to lead Aotearoa New Zealand’s only professionally run choral ensemble that inspires through the outstanding quality of its singing and concert presentation.

Voices NZ is the peak of the choral pathway of Aotearoa’s national choirs, which starts with the New Zealand Secondary Students Choir, continues with the New Zealand Youth Choir and is supported by the national Aotearoa Choral Academy.

Voices NZ has since its inception in 1998 built an international reputation which is maintained through recordings and occasional international touring. As Music Director you have significant influence on the aspirations of young choral singers in our country, but also the shape of the choral sector in Aotearoa.

We welcome applications from visionary choral leaders who share our passion for artistic excellence, audience engagement, innovative storytelling and music making, inspirited by the rich musical traditions of Aotearoa.

For more information about the role and application details see CANDIDATE INFORMATION PACK

(2) MANAGER, ARTISTIC PLANNING & OUTREACH (MAPO)

Employment contract, permanent
Scope for this role: minimum of 0.7FTE up to 1 FTE
Salary: negotiable

Closing date for Applications: 31 July 2025

The Manager Artistic Planning & Outreach is a senior leadership role responsible for leading the shaping and delivering of the long-term artistic vision of Choirs Aotearoa New Zealand’s national choirs and outreach programmes. This role is a pivotal link between artistic leadership and Management at CANZ, ensuring a consistent artistic voice in the strategic planning and curation of artistic activity across the organisation’s ensembles, ensuring excellence, innovation, and cultural relevance.

In addition to artistic planning across our national choirs, the role plays a critical part in developing the next generation of choral professionals in Aotearoa New Zealand.
Working closely with the Chief Executive and Music Directors, this position leads initiatives that strengthen talent pipelines, enhance sector capability, and expand access to high-quality training and mentorship for emerging conductors, composers, singers, and arts practitioners.

The role requires strong strategic thinking, cross-sector collaboration, and a strong understanding of both the artistic and educational spheres. It contributes directly to the sustainability and future leadership of choral music in Aotearoa.

The ideal candidate would have a tertiary qualification or equivalent in an artistic musical discipline..

For more information about the role see JOB SCOPE.

To apply please send your Cover Letter with your candidate statement responding to the job scope and your CV to joinus@choirsnz.co.nz.

For any question you can contact our CE Arne Herrmann on ceo@choirsnz.co.nz

Andrew took over the artistic leadership in 2008 for a whole decade.
Here are a few highlights of what he and the choir achieved in that time:
The 2009/10 choir toured to Canada, again achieving great success at the International Choral Kathaumixw. The choir won the Adult Mixed Voice competition and came second in both Youth Choir and Folk And Cultural Traditions competitions. A new award was created especially for the NZSSC, the People’s Choice Award, as a result of the way thousands of people at the Kathaumixw responded to their music, as evidenced by standing ovations at every concert, including some audiences of over 2,000 people.
The 2011/12 choir sang in Auckland, in Christchurch as part of the Christchurch Arts Festival and Christchurch Sings, the one year commemoration to the September 2010 earthquake, in Ashburton, in Napier, and in Wellington. Andrew Withington led the choir on a tour to the Ihlombe Music Festival in South Africa, singing alongside international and South African choirs. This was an extraordinary musical and cultural experience for our members.
The 2013/14 choir sang in Wellington, Tauranga, Auckland, Queenstown, Wanaka, Alexandra, Christchurch. Highlights included performing at the ANZAC Dawn Parade in Wellington, 2014, and appearing on What Now children’s television show! The choir toured to Singapore, performing at the Orientale Concentus Festival, and in Malaysia.
The 2015/16 New Zealand Secondary Students Choir enjoyed another very successful international tour to the International Choral Kathaumixw Festival in Powell River, British Columbia, Canada, this time as Guest Choir. The festival finale was a massed choir concert of one thousand voices led by the innovative Finnish conductor, Sanna Valvanne.
In 2016, NZSSC marked its 30th birthday with the establishment of a Student Support Fund and a concert at Sacred Heart Cathedral in Wellington, where the choir was joined on stage by some of its alumni, including former director, Roger Stevenson (left in second photo).
In 2018, NZSSC toured to Hong Kong to work with the Wah Yan College Kowloon Boys’ Choir on a new commission by David Hamilton and attend the Belt and Road World Choir Festival as Resident Choir. Then it was on to Shanghai for three more days of musical and cultural adventures, including a performance at NZ Central and working with local choirs including the Vienna Boys Choir Shanghai Choir.
During this period, Artistic Director Andrew Withington completed his PhD, focused on creating his own system to teach choirs to more reliably and consistently sing in tune. Listen to an interview with Andrew discussing this research with Kim Hill on RNZ ( https://www.rnz.co.nz/…/andrew-withington-teaching-the… ).
Watch Andrew Withington’s final concert with NZSSC: Big Sing Finale 2018, courtesy of NZ Choral Federation
From our whānau:
For the 10 years that Andrew conducted the NZSSC he reported to me as the Chair.
It was a privilege to work with someone so young and talented. Andrew reached out to me last year and in response to one of our email exchanges I replied, “You can stand tall and proud of the expertise, experience and opportunities you gave to NZSSC choir members for over a decade. This is your legacy”.
Rest in peace Andrew
Linda Webb MNZM
CANZ Board & Foundation Trustee
I am devastated at the passing of Andrew Withington. He was a friend, colleague and mentor.
Andrew was an amazing musician, conductor, teacher, and singer who inspired so many young, and not so young, choral singers across New Zealand and beyond.
From leading the Primary School’s Music Festival in Christchurch to being the AD of the NZSSC for 10 years and then to working in the US university system, his legacy will be his passion and enthusiasm for choral excellence.
Thank you Andrew, for encouraging me as a conductor. It is my privilege to have followed you as MD of the NZSSC.
Rest in Peace dear Andrew.
Ngā mihi nui
Sue Densem
Music Director, NZSSC
Andrew took over the artistic leadership in 2008 for a whole decade.
Here are a few highlights of what he and the choir achieved in that time:
The 2009/10 choir toured to Canada, again achieving great success at the International Choral Kathaumixw. The choir won the Adult Mixed Voice competition and came second in both Youth Choir and Folk And Cultural Traditions competitions. A new award was created especially for the NZSSC, the People’s Choice Award, as a result of the way thousands of people at the Kathaumixw responded to their music, as evidenced by standing ovations at every concert, including some audiences of over 2,000 people.
The 2011/12 choir sang in Auckland, in Christchurch as part of the Christchurch Arts Festival and Christchurch Sings, the one year commemoration to the September 2010 earthquake, in Ashburton, in Napier, and in Wellington. Andrew Withington led the choir on a tour to the Ihlombe Music Festival in South Africa, singing alongside international and South African choirs. This was an extraordinary musical and cultural experience for our members.
The 2013/14 choir sang in Wellington, Tauranga, Auckland, Queenstown, Wanaka, Alexandra, Christchurch. Highlights included performing at the ANZAC Dawn Parade in Wellington, 2014, and appearing on What Now children’s television show! The choir toured to Singapore, performing at the Orientale Concentus Festival, and in Malaysia.
The 2015/16 New Zealand Secondary Students Choir enjoyed another very successful international tour to the International Choral Kathaumixw Festival in Powell River, British Columbia, Canada, this time as Guest Choir. The festival finale was a massed choir concert of one thousand voices led by the innovative Finnish conductor, Sanna Valvanne.
In 2016, NZSSC marked its 30th birthday with the establishment of a Student Support Fund and a concert at Sacred Heart Cathedral in Wellington, where the choir was joined on stage by some of its alumni, including former director, Roger Stevenson (left in second photo).
In 2018, NZSSC toured to Hong Kong to work with the Wah Yan College Kowloon Boys’ Choir on a new commission by David Hamilton and attend the Belt and Road World Choir Festival as Resident Choir. Then it was on to Shanghai for three more days of musical and cultural adventures, including a performance at NZ Central and working with local choirs including the Vienna Boys Choir Shanghai Choir.
During this period, Artistic Director Andrew Withington completed his PhD, focused on creating his own system to teach choirs to more reliably and consistently sing in tune. Listen to an interview with Andrew discussing this research with Kim Hill on RNZ ( https://www.rnz.co.nz/…/andrew-withington-teaching-the… ).
Watch Andrew Withington’s final concert with NZSSC: Big Sing Finale 2018, courtesy of NZ Choral Federation
From our whanau:
For the 10 years that Andrew conducted the NZSSC he reported to me as the Chair.
It was a privilege to work with someone so young and talented. Andrew reached out to me last year and in response to one of our email exchanges I replied, “You can stand tall and proud of the expertise, experience and opportunities you gave to NZSSC choir members for over a decade. This is your legacy”.
Rest in peace Andrew
Linda Webb MNZM
CANZ Board & Foundation Trustee
I am devastated at the passing of Andrew Withington. He was a friend, colleague and mentor.
Andrew was an amazing musician, conductor, teacher, and singer who inspired so many young, and not so young, choral singers across New Zealand and beyond.
From leading the Primary School’s Music Festival in Christchurch to being the AD of the NZSSC for 10 years and then to working in the US university system, his legacy will be his passion and enthusiasm for choral excellence.
Thank you Andrew, for encouraging me as a conductor. It is my privilege to have followed you as MD of the NZSSC.
Rest in Peace dear Andrew.
Ngā mihi nui
Sue Densem
Music Director, NZSSC

The world’s longest running national youth choir, NZ Youth Choir (NZYC), is getting ready for its 14th international tour: to Singapore and Europe. The traditional “farewell” concert will take place at Auckland’s Holy Trinity Cathedral, Friday 27th June, with tickets selling fast. The following day, NZYC will head to Singapore for concerts before flying to Europe to compete in the 6th European Choir Games and Grand Prix of Nations in Aarhus, Denmark. The choir will then return to the Llangollen International Musical Eisteddfod in Wales where they previously won “Choir of the World” in 1999.

This is the New Zealand Youth Choir’s first European tour since before COVID-19. The choir gathers New Zealand’s finest young voices aged 18–25 and offers a once in a lifetime opportunity to learn from our top conductor and vocal coaches, with the three-year membership culminating in an international tour. Director David Squire will end his time with the choir at the completion of the tour. David has directed NZYC since 2011 and was himself a member from 1985–1991 before becoming a founding member of Voices NZ and going onto an illustrious career in music education.

“It’s been my great honour to direct the New Zealand Youth Choir for the past 15 years,” David says, “As an NZYC alumnus, I’ve always considered this role bigger than any person who has the opportunity to conduct it and, with that in mind, 2025 is the time for my tenure with the choir to come to an end”.

The Holy Trinity Cathedral concert on Friday 27th June will be David’s last New Zealand concert as New Zealand Youth Choir director.

“David is one of New Zealand’s most prominent conductors, and his extraordinary legacy with New Zealand Youth Choir will be cherished and celebrated,” says Arne Herrmann, Choirs Aotearoa NZ’s CE, “While David’s tenure with NZYC will come to an end, his mahi with CANZ will continue. We will announce the new Music Director closer to the commencement of their start date in early 2026 – and once the recruitment process is complete”.

While overseas, NZYC will also sing in Singapore and the UK: Oxford, Barnsley and a concert at Sinfonia Smith’s Square,  London – where NZYC in 2016, the last time they were in Europe led by David, recorded their “Live in London” DVD and won the Grand Prix at the 2016 IFAS in the Czech Republic in 2016. NZYC has a Give-a-little page to support their 2025 tour.

NZ Youth Choir Farewell Concert at Holy Trinity Cathedral, Parnell, Auckland
7:30pm, Friday 27 June, 2025

 

For more information, contact: Rachel Healy, PUBLICIST. 027 2706105, rachel@rachelhealy.co.nz 

 

MORE ABOUT DAVID SQUIRE

David has taught music in schools for 35 years and in 2011 won a New Zealander of the Year Local Heroes Medal for services to music education. His ensembles have won many awards at local and international music festivals, such as the NZCF Big Sing. His Rangitoto College mixed-voice chamber choir, The Fundamentals, won the platinum award at the 2008 NZCF Big Sing Finale in Wellington – the first time for a mixed-voice choir. David’s upper-voice choir from Kristin School, Euphony, was third in the open female choir competition at the International Musical Eisteddfod in Llangollen, Wales, in 2013. In 2019, Euphony represented New Zealand at the Budapest International Choral Festival, winning the Youth Choirs of Equal Voices category, coming 3rd in the open Musica Sacra category and was invited to compete for the Grand Prix. David’s Westlake Boys High School lower-voice choir, Voicemale, won the Grand Prix at the 2nd Leonardo da Vinci International Choral Festival in Florence in 2018, and David won the award for best conductor at this event. David has been music director of the Westlake Symphony Orchestra for 25 years, and it has won more gold awards at the KBB Music Festival than any other ensemble. In 2014 the orchestra was placed first equal at the Summa Cum Laude International Youth Music Festival in Vienna.

David is also the director of the Auckland Youth Choir, Vice-Chair of the New Zealand Association of Choral Directors, is a national conducting advisor and tutor and was a governance board member of the New Zealand Choral Federation for 9-years. He completed his undergraduate study at the University of Auckland, with an emphasis on conducting and composition, later graduating with a Master of Music degree with first class honours in choral conducting. He studied singing with Isabel Cunningham, Glenese Blake and Beatrice Webster, and conducting with Karen Grylls and Juan Matteucci. He has sung with many top choirs in New Zealand, including the Auckland Dorian Choir, University of Auckland Chamber Choir and the New Zealand Youth Choir. He was a founding member of Voices New Zealand Chamber Choir and the V8 Vocal Ensemble.

 

David has previously led the New Zealand Youth Choir on four international tours, including the USA and Canada in 2013, which featured performances of the War Requiem by Britten in the Walt Disney Concert Hall in Los Angeles, as well as concerts in Toronto, Ottawa, Montreal, Boston, New York and Washington DC. In 2016 the choir gave concerts in Singapore, the Czech Republic, France and the UK. Tour highlights included singing high mass at Notre-Dame in Paris, a lunchtime concert at Windsor Castle, and producing a live DVD recording of a well-received concert at St Johns Smith Square in London. The choir also participated in the Festival of Academic Choirs in Pardubice, Czech Republic, winning every category it entered, as well as the prize for outstanding vocal culture, and then going on to win the Grand Prix. At the end of 2019 the choir embarked on a Pacific tour aboard the cruise ship MS Maasdam, taking in Tonga, Niue, Fiji, New Caledonia and Sydney. In 2022 the choir toured Australia, presenting performances in Tasmania, Melbourne, Adelaide, Perth, and at the Sydney Opera House.

 

As a freelance musician, David has conducted several local ensembles, including the Auckland Philharmonia and the St Matthews Chamber Orchestra. He was the assistant musical director of the New Zealand Secondary Students’ Choir, founding musical director of the Auckland Youth Big Band, chairman and administrator of the KBB Music Festival, and a live performance reviewer for Radio NZ Concert. David is often involved in session and recording work, particularly as a conductor, adjudicator, clinician and singer and was choir director on the recent New Zealand film, Tinā. He has also served as the choir director for Synthony, and is the chorus master for the International Schools Choral Music Society based in China.

 

For more information, contact: Rachel Healy, PUBLICIST. 027 2706105, rachel@rachelhealy.co.nz