Trumpets

The player’s vibrating lips set the air in motion.

423.1 Natural trumpets – There are no means of changing the pitch apart from the player’s lips. Examples include the bugle, didgeridoo, natural horn, and the shofar.

423.11 Conches – A conch shell serves as trumpet.

423.111 End-blown.

423.111.1 Without mouthpiece.

423.111.2 With mouthpiece.

423.112 Side-blown.

423.12 Tubular trumpets.

423.121 End-blown trumpets – The mouth-hole faces the axis of the trumpet.

423.121.1 End-blown straight trumpets – The tube is neither curved nor folded.

423.121.11 Without mouthpiece.

423.121.12 With mouthpiece.

423.121.2 End-blown horns – The tube is curved or folded.

423.121.21 Without mouthpiece.

423.121.22 With mouthpiece.

423.122 Side blown trumpets.

423.2 Chromatic trumpets – The pitch of the instrument can be altered mechanically

423.21 Keyed trumpets – Ophicleide.

423.22 Slide trumpets – Trombone.

423.23 Valved trumpets – French horn, euphonium, baritone horn, trumpet, and tuba.

423.231 Conical bore

423.232 Semi-conical bore

423.233 Cylindrical bore

43 Unclassified aerophone

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