ocr: TUBE VIBRATING AIR Slack Lips Reduced Length MOUTHPIECE - Pursed Lips Increased Length THE PLAYER LENGIHENS the tube, pursed changes pitch in a different and the column ofvibrating air, to way. Pursing the lips tighter makes make a note oflower pitch. A the column of air divide into several shorter tube gives a higher-pitched parts, creating a series ofnotes note. The way the player' S lips are called harmonics.
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