Sarah, who is now studying nursing at Massey University in Palmerston North, cherishes her extra-curricular music tuition.
"I learn piano and violin and I love them both.''
She smiles as people drop coins and notes into her violin case.
"Look, it's amazing isn't it?''
But the money is not for Christmas shopping, she said.
"No, it helps pay towards my music tuition. It's quite expensive these days. ''
The two weeks before Christmas is her busking gig and Sarah said one of the things she loves the most is seeing so many people she knows.
"And it's not as though they just come to see me, they're just coming into town anyway. So it's good to meet up with friends I haven't seen for along time. I'm very lucky and I love it.''