Check out this blog post on Open String book studies with free viola bow exercises!
Open String Bow Workouts for Viola, Book Three
One way to maximize your viola practice is by adding a short bowing study on open strings!
Open-string studies on the viola can help you focus on your bow and how it interacts with the string. Good bow technique is essential for creating beautiful sound.
This third book of new and exciting bowing workouts for the viola gives you 99 exercises to train your bow on open strings before you begin the rest of your practice.
The main focus of Book Three is bow control. The exercises in this book help you develop bow control using long sustained bow work, string crossing, staccato, and spiccato, as well as special exercises for bow starts and bow landings.
Since there are no left hand notes, you can focus entirely on improving the dexterity and control of the right (bow) hand. This book gives violists a tremendous resource for developing an all-around bow technique that meets the demands of the viola repertoire, as well as a path to creating better tone. Note: The main focus of this book is on bow control. Smooth, connected bows and string crossing are covered in Book Oneand articulated bowings are the focus of Book Two.