B. Alberti, an American jazz arranger active primarily from the 1940s through the 1960s, was a significant, albeit often uncredited, contributor to the big band sound. Known for his sophisticated harmonic voicings and intricate counterpoint, Alberti's arrangements blended swing era exuberance with emerging bebop sensibilities. While he rarely led his own ensembles, his charts were sought after by prominent bandleaders of the era, including collaborations with figures like Stan Kenton and Woody Herman. Alberti's meticulous scores were instrumental in shaping the orchestral textures of many classic jazz recordings, demonstrating a profound understanding of ensemble dynamics and instrumental color.