Is it easier to blow with a full mouth or a half mouth?

1. Skill: When you play with your mouth full, you need to cover the whole mouth, and use the tongue and airflow control to produce timbre. When playing with a half-mouth, only a part of the mouth is put in the mouth, and the timbre is produced by controlling the tongue and airflow.

2. Tone: The full-mouth tone is rich and full, with a relatively wide range, which is suitable for playing melodious and grand tracks, while the half-mouth tone is relatively bright and crisp, with a narrow range, which is suitable for playing fast and flexible tracks.