Hi Janet

maybe my answers will surprise you.

Since MtM I changed the hole Idea with warmup.
The question is what would you like to warmup or what is really important to be warmuped ?
I am very convinced that your body need the warmup not the trumpet.

Therefore I start with flapping the lips,
Stretching the face muscles, etc

Than I take my trumpet without mouthpiece and blow air through it until water drops out of the bell.
With that exercises you warmup your hole body, especially the breathing muscles.

After that I am ready to practice as I perform.
I do the same warmup before going to stage.

That work for me.

Regards
Hajo🎺