I copied all my files from iTunes to a mini USB thumb drive instead of using bluetooth with my iPhone. When I plug it in and access the music it has it referenced by album titles instead of artists. If you have several songs from different "greatest hits" albums all those folder are in a row and you don't know who the artis is until you select that fodler to see the songs. Can they be sorted by artist?

 

You might have to make folders on your computer in the flash drive settings. I usually just plug my phone in.