Tortoise is a music player with great future written for Android with Java.

Features:

Finds and plays music from your phone drives (Both internal and SD)
Creates playlist by author automatically (You can switch off this feature)
Parses bad track’s metadata to good one automatically (You can switch off this feature)
Supports custom playlist creation
Dark and Light theme (BETA)
Basic player features like few ways of shuffling, three ways of looping
Editing track’s metadata (Only locally)
Beautif