I saw Les McCann in a small venue in the mid seventies. He was highly charismatic. I attribute this to his ability to embody both what could be called the sacred and the profane. Earthiness and soaring spirit. the body and the soul.
Of course, one could say this about a host of Black artists who grew up in the church and then utilized their ability to channel a certain type of magnetism into songs that explored the dynamics of sexual relationships in a way that may cause us to question whether the spiritual and the physical are two sides of one coin rather than wildly divergent opposites, as they've been long portrayed by various religious traditions.

