Allegro - joyful or quick in tempo

Baritone - the medium male voice type

Bass - the lowest male voice type

Bravo - "great" in Italian

Chorus - a group of singers

Concert master - head violinist in the orchestra

Conductor - the person who leads/directs the orchestra

Costumer - the person that makes or supplies costumes

Crescendo - to get louder in volume

Decrescendo - to get softer in volume

Director - the person who directs the dramatic interpretation of the show and is generally in charge of the production

Forte - to play or sing music loudly (a "dynamic")

Harpsichord - an instrument like a piano used mostly in Mozart operas

House Manager - the person in charge of the front of the theater and tickets

Lento - to play or sing music slowly (a "dynamic")

Lighting designer - the person who creates the lighting concept

Mezzo - the medium female voice type

Mozart - a famous composer of operas 1756-1790

Orchestra - the musicians who play the instruments

Piano - to play or sing music softly (a "dynamic")

Pre Concert Lecture - a discussion about the show prior to the event

Props - the everday items used on stage like a table or chairs

Puccini - the most famous Italian opera composer.  "La Boheme, Madame Butterfly"

Scenery - the backdrops, walls and doors in a show

Set Designer - the person who designs and constructs the stage set and scenery

Soprano - the highest female voice type

Stage Crew - the team of people who move the sets and stage pieces

Stage Manager - the person who calls "places" in the show

Supertitles - the English translation of the words displayed above the stage

Tenor -  the highest male voice type

Traditional Opera - opera done in the original form and language

Verdi - Italian composer of operas, including "La Traviata", "Aida" and "Otello"