Sibelius Concerto on the Viola - Excerpt 

Great vibrato is based on logic and nothing else! The Vibrato Mastery Book was designed to train your brain on the sophisticated intricacies of vibrato. My vibrato system is based on physics, which means that not even the best of the best can escape the theory behind it. Available for violin, viola, cello, and double bass At:
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Amazon
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Wallas Pena Website
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The Vibrato Mastery Online Course is where you can find an in-depth look at my vibrato system. You can hear me explain and perform the things I wrote about in the book, and much more. For more information, please visit:
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For vibrato lessons contact me at:
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