The music warm up choices are good, HOWEVER, this chap, while he seems to be beyond high school in years old and shaggy whisker growth, is clearly not even close to being beyond college and having attained the requisite smarts along the way to know anything about the warm up pieces you suggested, and furthermore, not knowing a whit about anything, he is absolutely oblivious to the concept that YOU DON'T SHOW UP FOR TUBA CHRISTMAS WITH A STUPID TROMBONE, and if you do, you should expect a tuba or euphonium player to place it where the sun doesn't shine!

I have learned to write long sentences as our local newspaper allows you to rant, but only for one sentence....