Where does this come from, and can I check it?

The tube only amplifies and filters what the player's lips buzz. The figure is taken from Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a music fact?

Yes. It sits on the Music shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

In a brass instrument the lips make the sound

The tube only amplifies and filters what the player's lips buzz Valves or a slide add tubing to lower the pitch, but buzzing faster raises it through the harmonic series. That is why a bugle with no valves can play several notes. Mouthpiece shape strongly affects the tone. It sits in Mondo's music collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Britannica

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Science trivia

More facts like this

A trombone changes pitch by sliding a tubeSeven slide positions fill the gap between the harmonics Harmonicas and accordions share a free reedA metal tongue vibrates through a close fitting slot rather than beating a tube Trumpet valves add short lengths of tubingThree valves give seven combinations and a full chromatic range A brass mute changes the sound, not just the volumeIt adds a filter that cuts low frequencies and emphasises others Snare wires add buzz to the drum soundMetal strands under the lower head rattle when the top head is struck Some instruments sound at a different pitch from the notes writtenA written C on a B flat clarinet comes out as B flat

Tags: brass, instruments, physics

In a brass instrument the lips make the sound: the short answers

Where does this come from, and can I check it?: The tube only amplifies and filters what the player's lips buzz. The figure is taken from Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a music fact?: Yes. It sits on the Music shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.