Doot doot

Wouldn’t Figure 2 be like a person playing the trumpet with their nose? I’m not saying it’s not possible, but…

It’s only blowing, not playing as it can’t reach the keys/buttons/whatevertheyrecalleds

If I’m not mistaken, dolphins can’t physically breathe through their mouth. Like, their mouth doesn’t have a tube that connects to their lungs. So figure 2 is the only way it could work.

Can confirm

Jip their blow hole is just their nostrils that moved up to the top of their head over generations.

As so often: the truth is in the middle

the forehead?

You can still play. Just only a few notes.

Just researched this and apparently there has been at least one recorded case of a dolphin mouth-breathing. It likely only occurs when there’s something seriously wrong with the blowhole, but it can be done!

Neither

Brass instruments require the buzzing of lips in addition to the air in order to work. Since most of the dolphin’s air comes out the blowhole, but that has no mechanism to vibrate like lips it’s impossible.

They are called valves and not pushing any valves is called “playing open”. It just produces the trumpet’s harmonic series over its fundamental frequency, kinda like a bugle. Most trumpets are Bb trumpets, so dolphins could theoretically play all notes in that series. That’s very hard and requires excellent lip control, of course.

Whereas fish can play scales?

Cool, so it would have to be 1 then?

It would have to be 2. The blowhole is where the dolphin breathes out, and it has the muscles to adjust airflow for embouchure, but I don’t know if it can constrict and vibrate at the right frequencies to produce music.

A dolphin’s mouth doesn’t have any lip control, even if it could breathe out. Which I don’t think it can.

Oh, I didn’t know that!

No, needs to be 2. A dolphin’s windpipe is not connected to their mouth, so they couldn’t push air in 1.

So assuming the dolphin can keep it balanced, what’s the weight of a trumpet and the force of the air required to make a note?

So many questions that I wasn’t expecting today.

With their hands and lips, obviously… idiot

They weigh about 1kg. The force of air is harder to answer as it’s less about how hard you blow and more about how loose or tight your lips are around the mouthpiece. But since dolphins can blow water several meters into the air, I’d just assume they can produce more than enough force to make a note.

Second one but it would be fashioned as a hat or an underwater helmet.