Donald Reinhardt created an exercise he called the “Pivot Stabilizer.” He intended students to use this exercise as their first notes of the day. Here is the exercise, with some hand written notes and instructions for a specific trumpet student.
In order to better understand this exercise you first should forget about the embouchure “pivot.” Reinhardt defined it a certain way, but unless you studied it from him you almost certainly don’t understand what it is. Instead, think of this as an exercise to stabilize a brass musician’s “embouchure motion.”
Embouchure Motion – The natural motion a brass player makes when changing registers where the mouthpiece and lips together will be pushed and pulled along the teeth and gums in a generally up and down motion. The position of the mouthpiece on the lips doesn’t change, just the relationship of the mouthpiece rim and lips to the teeth and gums. Some players will push upward to ascend while others will pull down. Some players will have a track of their embouchure motion that is side to side. For more details on this phenomenon go here.
Assuming that you fully understand the embouchure motion definition above, you can make use of Reinhardt’s exercise to help make a student’s embouchure motion function more efficiently with less conscious effort. The arrows drawn into the music above are a specific trumpet student’s embouchure motion direction, just make sure that you’re instructing (or using, if this is for your own practice) the correct embouchure motion for the individual student. The student should use this exercise as a way to find where the tone is most open and resonant for each particular note.
The first time through each three measure set the student should watch what the embouchure motion looks like in a mirror. On the repeat Reinhardt instructed the student to close his or her eyes and instead focus on the feel of the embouchure motion assisting with the slurs. The “V” after each set was Reinhardt’s notion to remove the mouthpiece from the lips for a moment before moving on to the next set.
One thing I wanted to adjust for this exercise was the starting note and where the “home base” range for this exercise lies. For many students, particularly the Very High Placement and Low Placement embouchure types, it can be more useful to use a higher pitch as the central range point. Many of these musicians will find it easier to play correctly in their upper register, so slurring up to the high range before playing down to their low range gives them a better chance to descend correctly (as opposed to slurring down to the low range before up to the high range, as Reinhardt’s original exercise).
The above exercise duplicates the purpose of Reinhardt’s “Pivot Stabilizer” but moves the center of the exercise to G on top of the staff (for trumpet) and also has the student playing an ascending slur first, before descending to low C.
If you want to experiment with your own practice or teaching using these exercises here are some printable files for you.
Original Pivot Stabilizer
Embouchure Motion Stabilizer for Trumpet
Embouchure Motion Stabilizer for Horn (I might transpose the range differently, depending on the student)
Embouchure Motion Stabilizer for Trombone/Baritone/Euphonium
Embouchure Motion Stabilizer for Tuba