Translation guide
A mezzo-soprano is a female singing voice between soprano and contralto, or a singer with that voice type. In Japanese, the term is borrowed directly from Italian.
Referring to the mezzo-soprano vocal range or classification.
Referring to a person who sings mezzo-soprano.
Explicitly means 'mezzo-soprano singer'. Used when you need to clarify you're talking about the person, not the voice type.
I'm singing the mezzo-soprano part.
I'm a mezzo.
She is a famous mezzo-soprano singer.
Can also refer to the singer, especially when context makes it clear.
That mezzo-soprano is wonderful.