Honestly I don't see the benefit of sorting your music yourself by genre doesn't it make albums hard to find sometimes? iTunes will sort them by artist \ album then the player will allow you to list your music it different ways by artist, album, songs and of course genre. Even on android if you buy an album and rip it you have to go and organize it yourself. Even windows doesn't rip albums the way you like. The only thing your missing is organizing your music manually and why bother?
It's just that I've already done the sorting work, years ago, and I have like 10 basic genres. I know where to go to for everything.