Check the listing for details. Hal Leonard Essential Technique for Strings - Book 3, Conductor. Condition: Brand New. Listed at 51.13 USD. A Teacher's Guide to Essential Technique Hal Leonard's Essential Technique for Strings series offers a solid foundation for beginning and intermediate music students looking to start their musical journey on the right foot. The conductor's book for this series serves as a comprehensive teaching resource and contains complete scores for every exercise, special instructions for each instrument, and sequence charts that offer an instructor's guide to the introduction of new concepts. The book is also complemented by Essential Elements Interactive (EEi), an engaging online music education resource. Perfect for teaching beginning string students in the classroom and at home, EEi provides a teacher-friendly set of technology tools for online pedagogy, assessment, and communication.