How to use Emacs to play Music.
Use EMMS: maketecheasier
Add these lines to .emacs or .emacs.d/init.el:
;; emms
(require 'emms)
(require 'emms-setup)
(emms-all)
(setq emms-player-list '(emms-player-mpv emms-player-mpg321))
(setq emms-source-file-default-directory "~/Music")
(emms-mode-line-mode 1)