mezzo soprano MET-soe soe-PRA-noe Your browser does not support the audio element. [ Italian ] Definition A female voice similar in range to a soprano, but with a darker color and the ability to extend the range lower than a regular soprano. The female voice range between soprano and alto. Share Share on Facebook (opens in a new tab) Share on X (opens in a new tab) Last Updated: 2016-06-05 16:06:07