J. Di Martino is a distinguished American jazz arranger and composer, active since the late 20th century. Renowned for his sophisticated and innovative approach to big band and orchestral jazz, Di Martino's work seamlessly blends traditional swing with contemporary harmonic concepts. His arrangements are characterized by intricate voicings, dynamic contrasts, and a keen understanding of instrumental capabilities, making them a staple for collegiate and professional jazz ensembles. Di Martino has collaborated with numerous prominent jazz artists and his compositions have been performed globally, significantly contributing to the modern jazz repertoire through his inventive and challenging charts.