This app was mentioned in 13 comments, with an average of 1.15 upvotes
Tried it today but it lacked too many features that this one has:
https://play.google.com/store/apps/details?id=de.zorillasoft.musicfolderplayer.donate
It´s more aimed at folders tho, so maybe it´s not for everybody. But you can easily set it to repeat a single track (like of an audiobook) and there is just so many more options.
Music Folder Player was made for people who don't like to see music displayed based on artist, album, track or playlists. If you prefer organizing your audio tracks in folder this may be the right player for you.
I use Music Folder Player for the same reason.