Derrick Morgan was a towering figure in the Jamaican music scene of the ‘60s, his authoritative vocals and cool charisma a constant presence at a time when sounds were changing rapidly. Upbeat early hits like "Don't Call Me Daddy" made him one of the giants of ska. The R&B influence of rude boy classics like "Fat Man" helped usher in the more soulful sound of rocksteady, just as "Seven Letters", a few years later, offered a heavy groove that helped give birth to reggae proper. Still, Morgan's most impressive accomplishment may be how natural he made this innovation sound: always easy, always in control.