By Paul Stein: When I hear violinists as different as Tasmin Little and Jay Ungar, I marvel at the various personalities and emotions vibrato affords violinists. Thinking about the effectiveness of both of these artists, I became interested in finding two exercises: one which would shed light on finding a suitable minimum amount of vibrato, and the other that would maximize it for a very romantic sound.
For inspiration, here some relevant examples from Youtube:
First, Jay Ungar: A lovely, momentary vibrato that shadows the haunting tune of Ashokan Farewell satisfies my love of perfect simplicity. The music was written by Ungar in 1982 and is heard throughout Ken Burns' documentary, The Civil War.
Theres also the power vibrato featured in Littles exotic rendition of Fritz Kreislers La Gitana. When she turns on her "romantic," out comes the lush, wide vibrato with timing and dimensions that fit just right. She played it while moving from table to table in a restaurant, a party atmosphere in which only a highly energetic vibrato will do.
Vibrato Phase 2: Know Your Vibrato and Use It
I watch these videos for two reasons, to see what natural musical achievement looks like, and to figure out what Im missing. In terms of vibrato, I was looking at Phase 2 in its development, in which I observed how my vibrato was behaving in the context of technique and music. I needed to move forward with the vibrato I already had, complete in its perfect imperfection. Starting over was not an option.
Two people, two vibratos, two settings, and two composers: These inspired me, and the next step was to figure out which aspect of my vibrato I would work on next. I saw inconsistencies and lapses, a collapsed finger here, a late vibrato there. The best way to move forward was through the sheer drive of self-knowledge and the elimination of bad habits.
The desire to use vibrato must be so strong that it will spontaneously accompany expressive playing. In my own experience, just being able to do something doesnt mean I will do it. I needed a system that signaled me to start the vibrato. Having a vibrato, but not using it, was wasting a perfectly good resource.
Minimum Vibrato: Thought Experiment Where Expression Meets Vibrato
Ungar demonstrated the magical moments in Ashokan Farewell when vibrato comes from nowhere and is exactly where it needs to be. To understand that type of responsiveness, I devised exercises that involves thought patterns, to link one's thoughts with one's playing.Super-Size That: A Generous Vibrato
When it comes to naturally effusive and warm-hearted music making, Tasmin Little is a shining example of how closely violin playing and personality are aligned. Her vibrato in the Kreisler brings it home. Its full-bodied and demonstrates how wide vibrato can be without losing the center of the pitch. And as far as the musical value is concerned, theres something about a large, maximum vibrato that expands the boundaries of expressive possibilities.
For this, I devised three exercises to maximize oscillation, while keeping the pitch pure. How I thought and how I played were now intertwined, so the exercise included both processes.
- Give your vibrato a "green light," a reminder to start, encouragement to last long enough, and the ability to stop in a musical, relaxed way. Sometimes vibrato doesnt start because theres not enough energy coming from the bow arm. A little encouragement such as an accent or a crescendo will turn on the vibratos green light. Vibrato technique and bow technique go hand-in-hand.
- Here's an exercise that gave me the opportunity to start and stop vibrato, freeing my mind from distractions: I made up my own tune and added a tiny impulse of vibrato to correspond with a bow change or dynamic change. I allowed my mind to free-associate so I could better absorb what I was experiencing. Ungar and Ashokan Farewell were in my ear, so it made me appreciate the luster and intimacy of a well-placed vibrato. I let the vibrato stop when the musical moment was done. This exercise strengthened the control I had over vibrato. I could even choose to vibrate all the time if Id like; it would come in handy in orchestra playing.
- First, find the limits of a wide vibrato. How does pitch remain constant, while the fingertip is vibrating through territory that is clearly not the central pitch? My conclusion: The oscillation can cover the area from the pitch itself to the area just before the next half step is reached. Knowing this allows us to create the widest vibrato, while still keeping its pitch. Its fascinating to me that the true pitch survives such a journey!
- Stable pitch needs a healthy, reliable oscillation. It's important to keep a consistent distance between the pitch and the bottom of the vibrato. The resonance of the pitch depends on an enhanced, evenly spaced, oscillation. An interesting phenomenon is that 99% of the vibrato is below the pitch, yet the pitch doesnt suffer. For the best result, avoid vibrating above the pitch - although a small part of the oscillation can go slightly above the pitch without affecting it. This process is similar to the hammer on a piano hitting the string. This infusion of extra energy translates into a more lustrous tone. Having a confident bow stroke and a strong rhythmic momentum helps keep the vibrato going.
- The exercise starts with a narrow, fast vibrato. Let it last just a moment, then keep up the endurance for two or three seconds. Afterwards try a wider vibrato, using more energy to cause the hand to move farther. Be prepared to move both the downwards and the upwards movement of the vibrato so that they are equidistant. If the note is slightly out-of-tune, re-balance the hand to make the finger focus on the correct pitch.