Learn how to say Contralto correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word contralto:
(plural) -tos, -ti (-tɪ)
the lowest female voice, usually having a range of approximately from F a fifth below middle C to D a ninth above it In the context of a choir often shortened to: alto
a singer with such a voice
of or denoting a contralto ⇒ the contralto part