I have an iPhone and don't use the standard Music app. I use Plex or CloudBeats to access and store music/audiobooks locally on my device. All of this music is

I have an iPhone and don't use the standard Music app. I use Plex or CloudBeats to access and store music/audiobooks locally on my device. All of this music is stored on my Windows machine that acts as a server. It is accessed via Plex or Dropbox. I have no trouble accessing the files on my MacBook either. However, all of the music/audio is in a folder hierarchy and backed up. I don't touch iTunes.