And a good pair of glasses. Most instruments can be tuned to a greater or lesser degree. Drum skins can be heated to lower the notes; trumpets can have the mouthpiece inserted further to raise the note (relax girls); blades of grass between the sides of the thumbs get stretched more to raise the note (relax boys); even the human voice--like a water hose: increase the pressure, alter nothing else, whoa. Any to-any-degree escaping air will vibrate at a faster rate and thus raise the note. The real question, well here it is:

Poutine: food or not? Eat some of that and your heart's blood supply will decrease in geometric proportion to your intake. Bon appetit. As it does so, the tonal output of your body will increase BUT, the resting tonality of your body will exert itself more fully. Bad in this case. Anyway, back to notes about plumbing.

Sharp-turn 90s behave differently than long-sweep-bend 90s (relax girls). However, any restriction or direction-change in the flow will change the note until the turbulence settles down. At that point someone will suggest divine intervention and others will suggest grabbing a cab to 7th and 42nd.

Celery sings. It sings higher when it's tapped after it's frozen. Don't we all. Thaw the tapped celery and the note will be thawed too. That should be no surprise. If it is, call 555-5555. No one you know will answer. And the celery will sing.

Methane gas is a remarkable gas. Next time you fart, restrict your anal sphincter. The note will rise.

Have a good evening all.