Trombones Unlimited is a notable band primarily known for their focus on trombone-heavy arrangements in a variety of musical genres, including jazz, classical, and pop. Formed in the mid-20th century, the ensemble has contributed significantly to the prominence of the trombone in ensemble arrangements. Their distinctive sound is defined by the harmonious interplay of multiple trombones, creating a rich, resonant sonic landscape. They have produced several influential works that have shaped the future use of trombones in both solo and ensemble settings.