"That's how it should be. Working hard, learning, practising and spending time with the other singers is fantastic. You can feel yourself progressing and becoming stronger.''
The three are all hoping to head overseas this year to study.
Orchane said she has been accepted at the Manchester School of Music later this year.
"I can't wait. Living in the north of England the home of the Manchester United Football Club, the good old soap Coronation Street, I'm already practising a northern accent ... allo chook ya olright then?''
Simmons travelled to Europe last year to look at voice teachers and will probably return to Germany, he said.
King is also setting his sights on Europe this year and specialised teaching.
However, being on campus at the New Zealand Opera School at Collegiate School was a fulfilling and special time, they said.
"We feel very privileged.''