 For vocal lessons, teachers show students how to sit or stand and breathe, and how to position the head and mouth for good vocal tone.For instrument lessons, teachers show students how to sit or stand with the instrument, how to hold the instrument, and how to manipulate the fingers and other body parts to produce tones and sounds from the instrument.For wind and brass instruments, the teacher shows the student how to use their lips, tongue, and breath to produce tones and sounds.