Dipping into the rarities bag, this 14-track compilation of soul and funk duets is designed to appeal to hardcore collectors rather than the general audience. Some of the tracks indeed are so rare that they have been transferred to disc from vinyl complete with obtrusive surface noise. Relative sound levels are likewise very roughly calculated. Among the participants are James Brown and Marva Whitney, Marvin Gaye and Tammi Terrell, Ray Charles and Lillian Ford, and, amazingly, Peters and Lee. Strictly for specialists only.