LESSON 2.3: BUTTERFLY
 ✨Practice with your students.
                             ✨Remind students to sit nice and tall while listening and practicing.
                             ✨Ensure everyone follows along—no free-styling.
                             ✨Check for nose-only breathing (no mouth exhales).
                             ✨Encourage gentle, easeful Calm Breathing.
                             ✨Expect four weeks to build habits—extra guidance is normal.
                             ✨Play the follow-up lesson at least once the same week.