From Tricki Wicki - sounds about right
The phrase "soul music" itself, referring to gospel-style music with secular lyrics, is first attested in 1961.[6] The term 'soul' in African-American parlance has connotations of African-American pride and culture. Gospel groups in the 1940s and 1950s occasionally used the term as part of their name. The jazz that self-consciously derived from gospel came to be called soul jazz. As singers and arrangers began using techniques from gospel and soul jazz in African-American popular music during the 1960s, soul music gradually functioned as an umbrella term for the African-American popular music at the time