张瀚元 made "真情难了" available on January 12, 2016. With this song being around four minutes long, at 3:43, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. There is only one song in 如果今生我不在你的左右, so we believe that "真情难了" is a single. The popularity of 真情难了 is currently unknown right now. Based on the vibe, this track doesn't seem to be that danceable, however its valence properties can make this some somewhat danceable.

真情难了 テンポ

The tempo marking of 真情难了 by 张瀚元 is Presto (very, very fast), since this song has a tempo of 200 テンポ. The time signature for this track is 3/4.

真情难了 キー

F♯ Minor is the music key of this track. This also means that this song has a camelot key of 11A. So, the perfect camelot match for 11A would be either 11A or 10B. While, a low energy boost can consist of either 11B or 12A. For moderate energy boost, you would use 8A and a high energy boost can either be 1A or 6A. However, if you are looking for a low energy drop, finding a song with a camelot key of 10A would be a great choice. Where 2A would give you a moderate drop, and 9A or 4A would be a high energy drop. Lastly, 2B allows you to change the mood.