A Singer
Opera singers all sing all kinds of operas. There are no special terms for singers of comic operas.
Open Call - 2012 I Sing and Sing Opera 1-23 was released on: USA: 18 October 2012
A person who writes the libretto for an opera is simply referred to as the librettist.
In opera, the text is written by a librettist.
In an opera house.
soloist
Sing Opera - 2008 was released on: USA: 2008
diva, soprano, alto, bass, tenor, baritone
If by Play you mean drama and script, then when Opera is to sing, Play is to act.
Yes they can, a lot of them sing opera or sing in choirs.
say
opera.