Ethnic music and Gospel singing

Ethnic music noun - The traditional and typically anonymous music that is an expression of the life of people in a community.

Gospel singing and ethnic music are semantically related. In some cases you can replace phrase "Gospel singing" with "Ethnic music", this phrases are similar.

Gospel singing noun - Folk music consisting of a genre of a cappella music originating with Black slaves in the United States and featuring call and response; influential on the development of other genres of popular music (especially soul).

Ethnic music and gospel singing are semantically related. You can use "Ethnic music" instead a noun phrase "Gospel singing".