Repertoire by theme: weird, maritime, industrial, London, Yorkshire, self-referential, economics, ballad, animal, dance, migration

Details:

Classical music	Songs about songs Self-referential organ-grinding repertoire, for fans of recursion and believers in meta being betta
Animal songs	Popular (broadside) ballads aka Bänkelsang/cantastoria
Maritime repertoire Pirate ballads, sea songs, shanties, habaneras...	Pop classics
Migration songs In out, in out, shake it all about.	Songs and music from or about Yorkshire
Weird repertoire	Dance repertoire
Transport repertoire	London songs
Industrial (revolution) songs Automation, IT...	Magic money tree repertoire Songs about money, business, finance, economics...
Canciones de la época modernista del levante español / Songs from the Spanish Levant's Art Nouveau period