be in good, poor, etc. voice

be in good voice

To sound pleasant or appealing, usually of a singer. What a beautiful performance! Linda is really in good voice tonight.
See also: good, voice

be in poor voice

To sound grating or unpleasant, usually of a singer. Oh, we left the show early because their lead singer was really in poor voice.
See also: poor, voice

be in good, poor, etc. ˈvoice

be singing well, badly, etc: The soprano was in excellent voice.
See also: voice