String Builder Violin by Samuel Applebaum
A string class method (for class or individual instruction) in three books.
The Belwin String Builder is a string class method in which the violin, viola, cello, and bass play together throughout. Each book, however, is a complete unit and may be used separately for class or individual instruction. The material in this book is realistically graded so that only a minimum of explanatory material is required. Each melody is interesting and will provide the basis for a fine left hand technic and bow arm.