J. Jacomino is a distinctive voice in contemporary jazz arranging, known for their innovative approach to large ensemble writing. Active since the early 2000s, this American arranger has garnered acclaim for their sophisticated harmonic language and rhythmic ingenuity, seamlessly blending modern jazz sensibilities with the rich traditions of big band. Jacomino's arrangements have been featured by numerous university ensembles and professional orchestras, often highlighting intricate counterpoint and vibrant solo features. Their contributions have revitalized the jazz orchestra repertoire, pushing boundaries while maintaining a deep respect for the genre's heritage.