There is another workaround to playing music through mic in discord. You won’t face any loss of quality in the music unless your internet connection is very slow. If you want to stop the song, then use the command m!stop. This instructs the MedalBot to start playing music. Use the command m!play Song Name if you want to play the music through discord. These are bots that play music according to the instructions given with some written commands.
All you need to do is install plugins such as MedalBot, Rhythm, or FredBot.