By Blake Wedding–
A new decade has begun and with it the promise of new music. If you want a clue of the sounds the music industry will be heavily investing in over the next ten years then look no further than last year.
Every year, Billboard compiles a list of the most popular songs of the year. Throughout much of 2019, trap rap largely reigned supreme as the prevailing cultural zeitgeist. It seems indefinite at this point that trap rap will carry on into the next decade (which is not necessarily a bad thing), though this past year did see some interesting new developments in the realms of electropop, pop rap, emo rap and R&B.