Sarah Trevethick is a Christchurch-based alto and member of Voices New Zealand Chamber Choir, bringing experience from the New Zealand Secondary Students’ Choir and New Zealand National Youth Choir. She has also sung with The Hagley Singers, Nota Bene, the Cecilian Singers, the Shapeshifter Singers, and the Christchurch Symphony Orchestra Chamber Choir, and in 2025 appeared as the alto soloist in Handel’s Messiah with the Blenheim Choral Society. When she’s not singing, Sarah works as a change management consultant and leadership coach.