The following might help you brainstorm:
What is the genre or sub-genre of the music?
What are the ways in which you could characterize the style of your artist?
What trends or movements are associated with your artist? Do they identify with any social, cultural, or political movements?
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examples : pacifist, feminist, vegan, pro-environment, nationalism (pride in country or nationality), religiously devout?
Who might have influenced your artist?
What are the themes they often sing about or address? Heartbreak? Winning? Love? Family?
Is there a geographic region, city, state, country closely associated with your artist?
After you have answered some of these questions, think about how the answers might lead you to other sources, such as books, about your artist.
Share your list with your zoom room classmates, and make suggestions to each other for the types of sources you might try to look into.