Baritone - Middle male voice, lies between Bass and Tenor voices. It is the common male voice.
Bass - lowest male voice
A capella
One or more singers performing without instrumental accompaniment
Cantabile
In a singing style
Capo
Head, the beginning
Coda
Closing section appended to a movement or song
Falsetto
A weaker and more airy voice usually in the higher pitch ranges
Glissando
Sliding quickly between 2 notes
Passagio
Parts of a singing voice where register transitions occur
Rubato
Slightspeedingup or slowing down of the tempo of a piece at the discretion of the soloist
Tessitura
The most comfortable singing range of a singer
Vibrato
Rapidly repeated slight pitch variation during a sustained note, to give a richer & more varied sound
FEMALE SINGERS
Soprano - highest female voice.
Coloratura - highest soprano voice.
Lyric - bright and full sound.
Dramatic - darker full sound.
Mezzo - Soprano - most common female voice; strong middle voice, tone is darker or deeper than the soprano. (Range is A3 to A5 in piano).
Contralto - lowest female voice and most unique among female.
Sound/ Tone Color
For opera, the performance is about the quality of sound that the singer makes. Singing opera requires you to sing long phrases and to sing loud enough to be heard over an orchestra in large halls.
"BelCanto" Technique
When singing opera, the focus of the performance is on the singing technique. Opera technique is called bel canto, which literally means beautiful singing. This is done by singing with your mouth and throat wide open and used with the proper breath support to project the voice through the entire hall.
Language
Opera singers often sing in Italian, French, German, or Russian. You don't have to be fluent in all these languages, but you want to be familiar enough with them that you can easily sing and sound like you are fluent in these languages.
Posture
Proper posture promotes efficient breathing which is essential to projection, tone quality, and vocal range. The ideal posture for singing is erect yet relaxed. Overall good health and physical fitness are also important.
Vocal Range
One major goal of every singer is to have a well-developed and impressive singing range. In order to achieve this, a singer should establish good vocal habits in the most comfortable placement of the voice and then slowly expanding the range.
Endurance
Singers are expected to perform well even it will take an hour or more to perform. Endurance is expected from singers who also practice long hours to give a good and memorable performance.