Designed as a multi-use technique book for a string orchestra setting. Organized so that you can use the various sections in the book in the best way for your individual need. Its flexible sequence allows you to choose pages from the three major sections: 1) Higher positions and shifting 2) Keys and scales 3) Bowing and special techniques. Essential Technique for Strings is a book of studies to help the intermediate player develop the skills necessary for playing in an orchestra. Violin. ©1997.