/r/UnsentMusic
Its the music you want someone to hear, but you cant send it to them. Anything from a song you wish your ex could hear, to a song you wish you could make a parent listen too.
Hell, if you have a crush and have a song for them, but you dont want to seem like that creepy guy...here is the subreddit for you.
lets make this interesting.
Some other great subreddits:
/r/UnsentMusic
REAL
REAL
RAEE
WU
CLASSIC
SHIMMI SHIMMI
BOOOOOCOOOOO