Labels:cornet | earth | flugelhorn | sky OCR: THIRD VALVE TUBE RESSING THE THIRD VALVE routes air through the third valve tube and lowers the pitch by three half -steps. The third and longest valve tube is the hardest to keep in tune and fine adj justments to the pitch are often needed. To make fine tuning easier, the pitch of the note being played can be adjusted by sliding the valve tube in or out adjustments
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