Since Jarilo is God of Spring in ancient Slavic mythology and some festivals in a few Slavic countries are based from the ritual to celebrate his return, his main genre is Slavic folk songs. Also growing up with a father who's a god associated with music, he tends to appreciate modern music, too, and is a fan of Eurovision. Because Eurovision annually holds in May, it's certainly one of the festivities that he won't miss unlike anything held between late September to mid of March.
Slavic folk songs playlist:
And here's the Eurovision playlist :'D