Often students are familiar with the sound and mechanics of vibrato - but just aren't using it yet as a habit. 

The reason? They just don't know when to do it, and "all the time" is both overwhelming and incorrect!

So, to get them started, Ruth Brons has developed the following four rules to help students know when making the

effort to vibrate will yield the greatest rewards.

Four Vibrato Rules for Beginning Violin by Ruth Brons of Things 4 Strings