Originally Posted by Manny Laureano

BIN,

This is likely a thought that was developed by Arnold Jacobs many years ago. It's also likely that your instructor came up with it on his own. Nevertheless, it was based on an experiment where they had four members of the Chicago symphony play a low C (our low concert C). They had them outfitted with a variety of measuring gizmos and noticed that even though the trumpet was in his low register, the horn in his mid, the trombone in the moderate high, and the tuba in the very high register, they all were experiencing the same amount of intra-oral pressure and the same aperture. Of course, these were world-class players but the results were clear. If you can get someone to think of their high register as someone else's low register, the psychological effect was helpful enough to get them to play better.

I had an experience with a trombonist who couldn't hit the altissimo Eb in the Rhenish symphony so I grabbed a C trumpet and made him hit our 4th space Eb. When he went to his trombone, he played the lick flawlessly!

ML