I am not sure what you are calling music of today.
If it is hip hop ... I think that music is all one chord songs with just different drum patterns changing during the song.
Pop music is just repeating the same lyric line 3 or more times in a row, add one verse and repeat until you have a 3 to 4 minute vocal take.
With today's country music you can use your 26 country styles and steal parts from your Pop&Rock, R&B and Ballad styles to make styles to fit what they are calling today's country music.
All the parts are contained in the styles, you just need to move stuff around to make styles for what ever you want.