a baritone aria的用法和样例：
- A bass voice is lower than a baritone voice.
- Is he a bass or a baritone?
- If you start with his professional debut in Mexico at 16, singing as a baritone in zarzuela, Mr.Domingo has been before the public for 52 years.
- For example, a listener can gather a lot of information from the difference between a bass, a baritone and a tenor without ever seeing the singer.