This work investigates the structural and harmonic principles required to compose an effective musical introduction for orchestral or ensemble performance. The author, Samuel Adler, a distinguished composer and professor emeritus at the Eastman School of Music, utilizes his extensive pedagogical background to provide a framework for creating opening movements that establish thematic and tonal clarity. The text serves as a technical guide for musicians and composers seeking to understand the function of the 'intrada' as a formal musical device.

Experts in music composition frequently cite Adler’s work as a foundational resource for understanding the mechanics of orchestral introductions. Readers often note the technical density of the prose, which is intended for students and professionals with a strong background in music theory.