One latest obsession of mine is practicing vibrato and scales together, in various different ways, working on the infinitessimal shadings of vibrato that are possible.

In general we have the following types to work with: arm, hand and finger vibratos, fast, slow, wide, narrow, speeding up or slowing down.

In this exercise I’m using a specific speed combined with crescendos (what the bow does is really connected to vibrato and you have to adjust your bowing according to the type of vibrato and the ammount of shaking that may be going on…a whole lot for some of us…ok now, I’m getting silly).