Amnesty / Dear Teacher / 은사
Rank: 69553rd, it has 0 monthly / 6306 total views.
Authors: Ijae / Ijae
Genres: Manhwa / Drama / Music / Psychological / Romance
Status: Ongoing
Summary:
Minhee used to be a world-famous piano prodigy until one mistake sent her life spiraling. Her confidence shaken, her family broken and her life in ruins, all she can do is hope for a chance to make things better. That's when she meets Eun Hyun, the neighborhood piano teacher whose life has been filled with tragedies of his own. 
The world breaks everyone, it's up to us to pick up the pieces and glue ourselves back together.
Resources:
http://www.mangaupdates.com/series.html?id=148133
http://www.anime-planet.com/manga/broken-melody
http://www.lezhin.com/en/comic/brokenmelody