This text investigates the foundational principles of harmonic progression and voice leading within the framework of Western tonal music. Dr. Paul O. Harder and Greg A. Steinke utilize a programmed learning methodology, which breaks complex musical concepts into small, sequential steps designed for self-paced study. The book provides a structured pedagogical approach to understanding chromatic harmony, modulation, and advanced tonal structures through rigorous exercises and analytical examples.

This text is widely regarded as a standard pedagogical tool for undergraduate music theory curricula due to its systematic and incremental approach. The programmed format provides a clear, logical progression for students seeking to master the mechanics of tonal harmony through consistent practice and review.