Stereotypes in music

there are several stereotypes related to music and i know there are probably tons out there but for now im struggling finding some. i have been having difficulty finding at least one website that had what im looking for. this isnt my first time struggling for the history on national anthems it took me 2 20% time days to finish it. even though i am having some difficulties i do hope to find at least something on the subject of stereotyping in different music genres but until then im leaving with this. i hope to find something else to work on and or research but that possibly wont happen until i get around this road block. i might one day post one or two of my songs that i have written on here but for now i rather keep those private. until next time im leaving it as is.