vocalization (n.)

• articulation
• attack
• bravura
• coloratura
• crooning
• delivery
• diction
• enunciation
• hum
• humming
• intonation
• lyricism
• mouth
• phonation
• pronunciation
• scat
• singing
• solfeggio
• solmization
• song
• sounding
• speaking
• speech
• utterance
• verbalization
• voice
• voicing
• yodel
• yodeling