Do you have to change your tone production when you perform different moods and styles?

No! Most differences in singing styles are built into the music itself – the sequence of notes and certain conventions of singing that are popular during a particular place and time in history. When you adjust your voice to accomplish certain tonal “ideals,” you run the risk of interfering with your speech-level tone production, which is very dangerous to your vocal health. Your voice can, however, be “colored by your mind.” If you are thinking about what you are singing, there will be slight differences in your delivery, not in your basic production.